Ononot — If f(x) = \cos(x) \cos(2x) \cos(4x) \dots \cos(2^n x), what

Guest Session: 1 Question Remaining. Create Account to save progress.

Derivativeshard

0:00.0

If $f(x) = \cos(x) \cos(2x) \cos(4x) \dots \cos(2^n x)$ , what is $f'(0)$ ?