Question

if cos (A+B) =0 and sin (A-B) = 1/2 find A and B​

Answer 1

Answer:

A=60°, B=30°

Step-by-step explanation:

Cos(A+B)=0

A+B=90°. -(1)

sin(A-B)=1/2

A-B=30°. -(2)

from 1+2

2A=120°

A=60°

B=30°