Inverse Functions and Their Derivatives

Inverse Functions and Their Derivatives

Assessment

Interactive Video

Created by

Lucas Foster

Mathematics

10th - 12th Grade

Hard

The video tutorial explains how to solve a problem involving the inverse of a trigonometric function, specifically f(x) = sin(x). It covers determining the value of the inverse function at a specific point without explicitly finding the inverse function, and calculating the derivative of the inverse function at a given point. The tutorial also includes a graphical representation of the function and its inverse, highlighting the relationship between the original function and its inverse.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function f(x) given in the problem statement?

f(x) = x^2

f(x) = cos(x)

f(x) = tan(x)

f(x) = sin(x)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the interval for x in the given function f(x) = sin(x)?

π/4 to 3π/4

π/2 to 3π/2

π/2 to π

0 to π

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which trigonometric function value is used to find the inverse function value in part A?

sin(π/4)

sin(π/3)

cos(π/3)

tan(π/6)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of f inverse of 3/2?

π

π/3

π/2

π/4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula used to find the derivative of the inverse function?

1 / f'(x)

f'(x) / 1

1 / f'(f inverse of x)

f inverse of x / f'(x)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the derivative of f(x) = sin(x)?

sec(x)

tan(x)

-sin(x)

cos(x)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of f inverse prime of 3/2?

1/2

2

1/√3

√3

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the slope of the tangent line to the inverse function at x = 3/2?

2

1/2

3

1

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the graph of the inverse function obtained?

By rotating the graph of f(x) by 90 degrees

By reflecting the graph of f(x) across the line y = x

By shifting the graph of f(x) upwards

By scaling the graph of f(x) horizontally

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between the slopes of the tangent lines to f(x) and its inverse?

They are equal

They are unrelated

They are reciprocals

They are negative reciprocals

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