Get the most out of your questions with the extensive resources available on IDNLearn.com. Get accurate and detailed answers to your questions from our knowledgeable and dedicated community members.

If f(x)=sinx 2x 1 and g is the inverse function of f

Sagot :

The value of the derivative of the function g(x) at x = 1 will be 1/3. Then the correct option is A.

What is an inverse function?

A function that may convert into another function is known as an inverse function or anti-function.

If the function is f(x) = sinx + 2x + 1.

Then the derivative of an inverse function g(x) of a function f(x) at a given value (a) will be

[tex]\rm g'(a) = \dfrac{1}{f'(g(a))}[/tex]

The derivative of f(x) will be

f'(x) = cos x + 2

Then the given value of a will be

a = 1

g(x) = f⁻¹(x)

put x = 0, then we have

f(0) = sin 0 + 2(0) + 1

f(0) = 1

Put x = 1, in the function f⁻¹(x). Then we have

f⁻¹(1) = 0

and

g(1) = 0

Then put a = 1, then we have

[tex]\rm g'(a) = \dfrac{1}{f'(g(a))}\\\\g'(1) = \dfrac{1}{f'(g(1))}\\\\g'(1) = \dfrac{1}{f'(0)}\\\\g'(1) = \dfrac{1}{\cos 0 + 2}\\\\g'(1) = \dfrac{1}{1+2}= \dfrac{1}{3}[/tex]

More about the inverse function link is given below.

https://brainly.com/question/2541698

#SPJ4