Question

If cos alpha + beta equals to zero then sin alpha minus beta can be reduced to what

Answer 1

Answer:

Step-by-step explanation:

=Cos(alpha+beta)=0

=Cos(alpha+beta)=cos90°

=Alpha+beta=90°

Sin(alpha-beta) =?

=Cos{90-(alpha-beta)}

=Cos{alpha+beta-alpha+beta}

=Cos(2beta).

Answer 2

cos(alpha+beeta)=0

alpha+beeta =90.........>1

sin(alpha-beeta)=cos(90-alpha+beeta)

=cos(2beeta)

n thats ur ans

hope it helped u