Precalculus Mathematics Homework Help Forum

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Free pre-calculus mathematics homework help from qualified mentors. Math courses prior to calculus homework. Please use the template when requesting help and show your work.
Is it possible to find a number x such that 5 < x < 1?
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If 1=5, 2=25, 3=125,4=1880, 5=?
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8
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2K
Number of lines equidistant from four points on a plane
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2
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897
Chance of Selecting Twins from Group of 30 [Solved!]
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24
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1K
Plotting points in three-dimensional space
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8
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910
Trying to understand the property of absolute value inequality
2
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38
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2K
Using inverses to solve systems of equations
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4
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576
"Calculating Korifice Value in Cranes TP 410M, Problem 7-12
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6
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1K
Solve 2 Triangle Problem: Calculate Exact Value of x
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7
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1K
Is it ok to assume matrices A and B as identity matrix?
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25
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946
Find the GCD of the given complex numbers (Gaussian Integers)
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4
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1K
Solving Equations: Does Squaring Make False True?
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20
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776
Proving inverse of a 2 x 2 matrix is really an inverse
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3
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739
What Does Commutation Mean for Matrices A and B?
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3
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814
Problems in manipulating these 4 radical equations
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8
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802
Show that ##f(x)=2',1',2'## in the irreducible Polynomial
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8
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700
Transformations to both sides of a matrix equation
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25
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1K
Is there a rule that states that I should not divide in this scenario?
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10
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630
Deriving algebraic definition of cross product
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12
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860
Free variables for a matrix in REF
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3
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1K
Gauss-Jordan Elimination algorithm steps
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1
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496
Finding vectors parallel to a given vector
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5
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1K
Identifying the type of expression
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3
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452
Finding the value of lambda so that two lines are parallel
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6
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931
Exploring the Math of Glucose Polymers: Understanding 6^n
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6
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688
Interchanging x and y for inverse function
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13
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2K
Solving an Asymmetrical Inequalities Problem: Seeking Light
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29
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1K
Cannot understand what ##(mod ~ \pi)## means in the given formula
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7
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636
Is ##f(x)=2^{x}-1## considered an exponential function?
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12
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1K
Trig Identities - Pre-calculus in a Nutshell - Section 4 Question 1
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24
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3x3 matrix with complex numbers
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18
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1K
Inequality question -- Need help getting started...
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7
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622
Is it Possible for x^2 to Exceed 900?
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32
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1K
Calculating the distance from a point to a plane
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1
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748
Why Does Flipping the Denominator in Complex Fractions Give the Wrong Answer?
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9
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640
Solving a nested logarithmic equation
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2
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742
Find all the ways of writing N into x^2-y^2
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8
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798
Solving Plane Equation 3x + 2y -z = 4
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8
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1K
Find the range of values of a + b
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6
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589
How to Simplify This Trigonometric Equation Using Substitutions?
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4
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615
Find the coordinates of D which lies on the vector BC
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4
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614
Two roads meeting a river at different angles (heights and distances)
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7
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551
Why is this result different? (calculating the sides of a triangle)
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6
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630
Make ##x## the subject of the formula
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15
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662
Find the Area of the shaded region in the given problem
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1
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681
I don't understand this step in turning this negative into a positive
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6
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697
A formula involving the sum of cosines of the angles of a triangle
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6
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944
Algorithm problem involving 3 points and 3 lines in the x,y plane
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7
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913
Simplifying this complicated fraction
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6
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644
Finding the domain of a composite function
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10
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873
Prove that there are infinitely many primes of the form ## 6k+1 ##?
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12
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1K
How can I simplify 1/cuberoot(2)?
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13
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854
Geometry: prove that point M is touched by 4 circles
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4
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860
Justifying Equilateral Triangle AEF in ABCD
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5
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812
Exploring Equation of a Straight Line in 3D Space
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17
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1K
Solving a⁻¹ - b⁻¹ = b - a /(ab)
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13
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920
Calculating Left Hand Limit: ##\sqrt 6##
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17
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788
Find an equivalent equation involving trig functions
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4
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555
MHB Find this unknown angle in the triangle
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25
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What Is the Next Step in Solving This Logarithmic Equation?
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5
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585
Find angle B in the trigonometry problem
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30
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Solve the given trigonometry problem
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7
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888
Solve the given equation that involves fractional indices
2
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39
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Finding the angle between two vectors
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2
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663
Solving an absolute value quadratic inequality
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9
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822
How to find z^n of a complex number
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12
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1K
Probability of not getting a prize
2
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36
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2K
What are the implied domain and range of cos(arctan(x))?
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3
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Area of Quadrilateral inside a rectangle
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2
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782
Are both sample spaces the same or do they mean different things?
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5
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713
Geometry problem with arcs in a triangle
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16
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935
Writing a logarithm in a form not involving logarithms
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4
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950
Solve the given vector problem
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1
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623
Understanding Negative Velocity and Displacement on a Velocity-Time Graph
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7
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582
Quadratic inequalities with absolute values
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7
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759
Triangle formed by straight lines
2
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43
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2K
Need Aid On This Problem Set (Combinations of Month Numbers in 10 Years)
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17
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Formula for Xo and Yo for graph of quadratic function
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2
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924
Prove that ##AE=2BC## -Deductive Geometry
2
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52
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Is it possible to find the range of this function?
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22
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935
Limit question to be done without using derivatives
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25
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788
Find the values of a and b in the given polynomial
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15
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1K
Show that ##P(X=2)=\dfrac{2}{15}##
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7
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908
Choose a ball at random from a randomly selected box - alternative way
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10
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1K
Do We Need Boundaries for Fraction Equations?
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21
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864
Quadratic equation: Which way is correct? pic1 or pic2?
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32
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973
Complex numbers problem |z| - iz = 1-2i
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20
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964
Logarithm Questions - Solve Now!
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3
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869
How do you find the LCM and HCF?
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14
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A problem related to divisibility
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3
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662
Changing the base of a logarithm
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7
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948
How to apply BODMAS correctly in the given problem
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11
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727
Stopping the Bus in 100m - Can it be done?
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4
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1K
Laws of Logarithms: Definition & Examples
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8
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837
Calculating Probability Using Bayes' Formula: Solving for P(urn III | silver)
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6
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894
Prove that ## g(x)=f(x)\log {x}-\int_{2}^{x}t^{-1}f(t)dt ##.
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7
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848
How Can I Solve a System of Equations With Complex Numbers?
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19
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Solve for ##x## in the Given Problem
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17
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864
How Can I Solve ##1+i^3+i^5+...+i^{553}+i^{555}\ ?##
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4
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616
InWhat Situations Do We Enounter the Golden Ratio?
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10
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