Question

Cos(alfa +beta) =0,then find the value of sin (alfa +beta)

Answer 1

hiii here is your answer

cos(Alfa+beta)=0
cos(Alfa+beta)=cos90
Alfa+beta=90

sin(Alfa+beta)=sin90
=1
answer is 1

Answer 2

Sol sin(a+b)= sin 90 =1