Simplify Definition and 373 Threads

(sin120+tan120) / (sin150+tan150) I tried to simplify this, but it only gets more complicated. I converted the sin120 to sin 60, the sin150 to sin30. How can I make the tan 120 simpler, the rule sinQ/cosQ=tanQ is not useful because you end up with an angle for cos which is greater than 90 and...

I need some general guidelines on how to simplify factorials. I'm in Calculus III and the Prof. and unfoutunately our textbook has glossed over how to do this. All the factorials we are dealing with now are in relation to sequences and series. so I'm dealing with expressions that...

Is there a way to simply x-x-x? I know that x+x+x can by simplifed as 3x, but what about subtraction? One would think that if multiplication is just a simplification of addition, then indeed, division is just a simplification of subtraction. I need to know this for an equation I have to make...

This is probably easy for everyone on this forum but me. Can someone please explain this to me. I need to simplify this: (sqrt(x) - 4) / (x - 16)) am I on the right track by doing it this way... (sqrt(x) - 4) / (sqrt(x) - 4) (sqrt(x) + 4) ...then cancel the (sqrt(x) - 4) in the...

B = uNI/2L * (L/2/(\sqrt{((L/2)^2)+R^2)} - (-L/2/(\sqrt{((-L/2))^2+R^2))} I get.. B = uNI/2R (for those wondering, this is the equation to find the magnetic field when a Hall probe is placed in the center of a solenoid) they ask me to figure out the % diffeerence between the field at the...

I need some help I got an expression involving series... x - (2/6)x^3 - (20/120)x^5 - (1080/5040)x^7 - (140400/362880)x^9 - ... I remove x from my summation expression.. but Right now, I can express as a summation from n = 1 to infinity of (??) x^(2n + 1) / (2n + 1)...

can u simplify this further? (25-x) / (-25-x) thanks.

Hi, I've been doing a QM problem to do with a potential barrier going from x = 0 to x = a. I need to work out an expression for the transmission coefficient T and have a horrible looking expression: I can't use LaTeX properly, so: A = (F/4k_{1}k_{2}).e^ik_{1}a[e^-k_{2}a (k_{2} +...

I was never taught how to do this I was just given problems with no solutions so I don't know what to do can someone please help me I have two questions which are similar maybe if I get help with one I can solve the other one on my own. It says simplify the following \cos(\pi+x) + \cos...

could someone show me the steps on how to simplify log5/log125 to 1/3. I can't do it

\frac {x+2} {x-1} \frac \frac {4x+1} {x-1} Would using the bowtie method work? Cross multiply and then subtract the two answers found from each other, and put that result over the multiplaction of the two denominators. ? EDIT: I messed up the Latex thing. THe 4x-1 and the x-1 are supposed...

Which is the fastest way to simplify: (x+a)^2*(x-a)^2 to (x^2-a^2)^2 ? thx

i have to integrate the next: (x^2)(e^x)dx/((x+2)^2) It should be done by parts. How I can simplify it? Is (4x+4) (e^x) dx/(x+2)^2 easier to be integrated?

Dear Friends, I have this problem: \frac{i\hbar\Psi}{2m}\frac{\partial\nabla\Psi}{\partial t}+(\frac{i\hbar(\nabla\Psi)}{2m}\nabla)\frac{i\hbar(\nabla\Psi)}{2m} ... and i'd like to simplify it... is is possible? best reggards

I'm trying to simplify -2rh-h^2+2r/h can I simplify this anymore by canceling out the h, or is that not correct. Also, I don't believe I can factor out the h in the numerator because it's not in all 3 on top, is that correct?

Here's the question: Simplify the following as much as possible: ln 5th Sqrt of y^2 a> 2/5 ln y b> -3 + ln y c> 3 + ln y d> 5/2 ln y A,B,C, or D, which is it?

o:) simplify and state restrictions [(x+1)/(2x^(2)-7x+6)]-[(x-3)/(2x^(2)-x-3)] I got 3x+7 as my answer is this correct? and for my restrictions I got x cannot = 3/2,2,-1 are these correct?

Simplify (x+1)/(x-1) multiplied by (x+3)/(1-x^2) divided by (x+3)^2/(1-x) Im not sure how to factor the 1-x^2 and what to do with 1-x I don't know how to simplify this please help someone. The answer to this question is 1/(x-1)(x+3) x cannot = 1,-1, and -3

1) (-7+20)(-10-3i) 2) (-2-5i)/(3+4i) I don't think I did these two questions right does anyone know how?

Hi! I'm new to those forums, so I just want to say "Hello everbody!". To my question: How can I simplify \frac{\frac{1}{x+\Delta x}-\frac{1}{x}+ \frac{1}{x^2}\Delta x}{\Delta x} I've spent some hours on google, but no result. Just tell me the name of the method and I'm really gratefull!

Hi, I have got this expression from Mathematica: Sqrt[a^2*(Cosh(x))^2*(Sin(y))^2] I have tried to simplify this expression with Simplify[], but it returns the same result. I have tried to solve some other expressions and it returned some strange forms. For example: I have tried to solve...

I have to integrate: sqrt( (3t^2)^2 + (1)^2 + (sqrt(6)t)^2 ) at the limits t=1 and t=3 I can't figure out how to simplify the problem so that I can do the integral. So far the farthest I've gotten is the obvious: sqrt( 9t^4 + 6t^2 + 1 ) now I am stuck.

Hi All, Does Anyone know of any Math programs that are easy to use that I can download from the net. What I am trying to do is organize a long string of digits in groups of three, add the groups, and subtract from each running total certain incremental values. Thanks in Advance. Dan