Question

How do you find the critical points to graph `sin(3x)`?

Answer 1

`x = (kpi)/3 + pi/6, k` any integer

Explanation:

`d/dx sin(3x) = 3cos(3x)`

`3cos(3x) = 0`

`3x = kpi + pi/2 ,k` any integer

`x = (kpi)/3 + pi/6, k` any integer