testing
homework for week 42
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
For a function y = 2x^2 + 3, what is dy/dx using the chain rule?
x+3
2x^3
x+2
4x
If z = 4cos(x), what is dz/dx using the chain rule?
4cos(x)
4sin(x)
-4sin(x)
-4cos(x)