Question

solve the identity:
sin(x-3pi/2)=cosx

Answer 1

idk

Answer 2

open the sin

Answer 3

sin(A-B)=sinA*cosB-sinB*cosA

Answer 4

A=x
b=3*pi/2

Answer 5

plug in values of A and B

Answer 6

sin(x)cos(0)-sin(0)0cos(x)

Answer 7

sorry, there's an extra 0

Answer 8

B=3pi/2 not zero

Answer 9

\[sinx*\cos \frac{ 3 *\pi}{ 2 }-\sin \frac{ 3*\pi }{ 2 }*cosx\]

Answer 10

what is cos value at cos(3pi/2)=???