Question

If cot (alpha +beta) =0 then
sin (alpha +2beta) =​

Answer 1

cot(α+β)=0

⇒α+β=

π

2

 

Now, sin(α+2β)=sin(α+β+β)

=sin(

π

2

 

+β)

=cosβ

∴sin(α+2β)=cosβ

Answer 2

Answer:

hey watch the above pic for ur answer of the question