math online class

Question

What are the phase shift and period for the function y = 3cos[4(θ + 60°)] − 2?

Answer 1

y = A sin (Bx + c) + D

y = 3 cos (4θ + 60°) - 2

 

period: 2π/B

phase shift: -C/B

 

Can you answer the question now?