Inverse trigonometric function

In summary, the conversation is about finding the derivatives of inverse functions using a clever trick of taking both sides into the argument of the corresponding exponential function and applying the chain rule. This method can be applied to all inverse functions, and it involves differentiating both sides of the equation and using the chain rule to find the derivative of the inverse function. If you get stuck, you can seek help by explaining your steps and where you are stuck.
  • #1
noypihenyo
3
0
Find dy
dx


1.) y = In __x2 (x+1)___
(x + 2)3

2.) y = x3 ( 3lnx-1)

3.) y = __cos6 2x__
(1-sin2x)3


4.) y = __tan 2x__
1- cot 2x


5.) y = x e (exponent pa po ng e) sin2x


6.) Arc tan ____x_______
a- √ a2-x2


7.) __x_______ _ Arc sin _x_
a-√ a2-x2 a

_________
8.) Arc tan /__3x - 4_
√ 4
_______
9.) Arc cos ( 1 - _x_+ √ 2ax-x2
a

pls help i need the answer October 8
 
Last edited:
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  • #2
3) and 4) are not about inverse functions. Show us what you have tried that didn't work.

For the rest, there is a clever trick you can apply for all of them. Say I want to find the derivative of y(x) = ln(x). since ln(x) is the inverse function of [itex]e^x[/itex]=exp(x), I begin by "taking both sides into the argument of exp(x)", such that the equation becomes [itex]e^y=e^{ln(x)}=x[/itex]. And now I differentiate both side wrt x: [itex]\frac{d}{dx}e^y=\frac{d}{dx}x[/itex]. I use the chain rule on the left hand side: [itex] e^y\frac{dy}{dx} = 1[/itex], or, now replacing y by ln(x): [itex]\frac{dy}{dx} = 1/e^{ln(x)}=1/x[/itex]. I suggest you study this exemple until you understand each step. Then, try one of your problems. If you get stuck, you can ask us for help by writing exactly what you've done and where you're stuck.
 

FAQ: Inverse trigonometric function

What are inverse trigonometric functions?

Inverse trigonometric functions are mathematical operations that undo the effects of common trigonometric functions, such as sine, cosine, and tangent. They are used to find the angle or angle measure that corresponds to a given value of a trigonometric function.

What are the six main inverse trigonometric functions?

The six main inverse trigonometric functions are arcsine (sin-1), arccosine (cos-1), arctangent (tan-1), arccosecant (csc-1), arcsecant (sec-1), and arccotangent (cot-1). Each function is the inverse of its corresponding trigonometric function.

How do inverse trigonometric functions differ from regular trigonometric functions?

Inverse trigonometric functions use different input and output values compared to regular trigonometric functions. Regular trigonometric functions take in an angle measure and output a ratio, while inverse trigonometric functions take in a ratio and output an angle measure.

What is the domain and range of inverse trigonometric functions?

The domain of inverse trigonometric functions depends on the specific function, but it typically includes all real numbers between -1 and 1. The range of inverse trigonometric functions is usually given in radians and varies depending on the function.

How are inverse trigonometric functions used in real life?

Inverse trigonometric functions are used in real life to solve problems involving angles and distances. They are commonly used in fields such as engineering, physics, and navigation. For example, inverse trigonometric functions can be used to determine the height of a building, the angle of a ramp, or the distance between two objects.

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