in this question formula is
sinx.siny-cosx.cosy
But in the solution you have done plus instead of subtraction
Can you explain why is it done so..?
Answers!
Hi Ahmed,
We have made a mistake.
The formula for cos (x - y) is
cos (x - y) = sin x . sin y + cos x . cos y
We'll update the question soon.
Comment
Answer the question...
Hi Ahmed,
We have made a mistake.
The formula for cos (x - y) is
cos (x - y) = sin x . sin y + cos x . cos y
We'll update the question soon.
Comment