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Formative testing

Last updated almost 2 years ago

3 questions

Note from the author:

testing

Instructions

homework for week 42

1

1

1

Question 1

1.

If f(x) = x^3 and g(x) = 3x, what is (f(g(x)))' using the chain rule?

3x^2

9x^2

x^2

x^6

Question 2

2.

For a function y = 2x^2 + 3, what is dy/dx using the chain rule?

x+3

2x^3

x+2

4x

Question 3

3.

If z = 4cos(x), what is dz/dx using the chain rule?

4cos(x)

4sin(x)

-4sin(x)

-4cos(x)