Sin (a+b)=1 cos(a-b)=1/2 find a and b
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Answer:sin(a+b)=1
Sin(a+b)=sin 90
a+b = 90
a = 90- b ------------1
Again
Cos(a-b)=1/2
Cos(a-b)=cos60
a-b =. 60
a. = 60+b---------2
From 1 and 2 we get
90-b=60+b
2b. =30
b. =15
There fore
a=60+b
=75
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