Question

Write a cosine function with amplitude 3, period 180, phase shift of 30?

Answer 1

can i give u an attachment

Answer 2

Thanks so much

Answer 3

u r most welcome

Answer 4

Just to make sure. that says 3cos(2pi/180+30) right?

Answer 5

yes u r right

Answer 6

Ok Thank You.

Answer 7

wc

Answer 8

well if the period is 180 then the curve repeats twice over 360 degrees...

so

the curve is

\[f(x) = 3\cos(2x + 30)\]