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if a= b+y sin(a+b+y) + sin(a+b-y) + sin(a-b+y) = 4 sin a cos b cos y

if a= b+y 
sin(a+b+y) + sin(a+b-y) + sin(a-b+y) = 4 sin a cos b cos y

Grade:10

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
5 years ago
Dear student

It is not clear what needs to be found, like do you need some kind of relation or you want to prove LHS = RHS or any thing other, please repost
Arun
25750 Points
5 years ago
Dear student
 
we can write it as
 
sin 2a + sin 2b + sin 2y
 
hope now you can solve it.
 
in case of any difficulty feel free to ask

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