Question

1. Write the function y=-sinx as a phase shift of y=sinx

2. Write the function y=-cosx as a phase shift of y=sinx

Answer 1

do you know how to do a phase shift of y=sin x?
if so, look at the graphs and see what the phase shift would be

Answer 2

all i know is sin(pi+a)=-sinx.

Answer 3

what will it be?

Answer 4

at what value of x does sin x have the same value as cos x has at 0?

Answer 5

0?

Answer 6

cos 0 is 1. sin (what) is 1?

Answer 7

0

Answer 8

tell me the damn answer or go to hell

Answer 9

sin 90 degree = 1