Question

How do I differentiate cos[ (a^3) + (x^3) ] ?

Answer 1

for\[F(x) = f(g(x))\]\[F'(x) = f'(g(x))*g'(x)\]
i personally see it as: "the derivative of the outside times the derivative of the inside"

answer is\[-\sin(a^3 + x^3)*(3x^2)\]

Answer 2

thank you

Answer 3

is the derivative of a^3 0?