plz answer this question no 52
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sin a + cos b=2 sin a + b/2 cos a-b/2, cos a + cos b = 2 cos a + b/2, cos a - b/2
Given sin x + sin y = 1/4 i.e
= 2 sin(x + y)/2 cos (x - y)/2
Given cos x + cox y = 1/3 i.e
= 2 cos(x+y)/2 cos(x-y)/2 = 1/3
On solving both, U will get
tan(x + y)/2 = 3/4
Given sin x + sin y = 1/4 i.e
= 2 sin(x + y)/2 cos (x - y)/2
Given cos x + cox y = 1/3 i.e
= 2 cos(x+y)/2 cos(x-y)/2 = 1/3
On solving both, U will get
tan(x + y)/2 = 3/4
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