What is the frequency of the function y = -5cos6x?

Question

asked May 26, 2020 186k views

2 Answers

Dmansfield · Answer 1 · 2020-06-01T15:11:36+0000

Answer:

3/π Hz

Explanation:

Recall that for a cos function in the form

y = A cos Bx

period = 2π / B

frequency = 1/period = B/2π

Given y = -5 cos 6x

A = -5 and B = 6

frequency,

= B / 2π

= 6 / 2π

= 3/π