Question

sin a =1/√2 cos ß a+ß=?​

Answer 1

Step-by-step explanation:

sin a=1/√2

or,sin a = sin 45°

or, a =45°

cos a = cos 45 ° =1/√2

I can't understand your question completely.

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Answer 2

Answer:

Step-by-step explanation:

sin a = cos45 cosb

a+b

Cos(a+b) =

I was able to get this much far only