If cot(a+b) = 4/5 and sin(a-b)=5/13 and a,b ies between 0 and 45 .Find tan(2a)
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Hey,
Cos (a+b) = 4/5
a + b = 0.6435 ------- (i)
Sin (a-b) = 5/13
a-b = 0.39479 ----------- (ii)
Add (i) to (ii)
2a = 1.0383
Tan2a = Tan 1.0383
= 1.697
HOPE IT HELPS YOU:-))
Cos (a+b) = 4/5
a + b = 0.6435 ------- (i)
Sin (a-b) = 5/13
a-b = 0.39479 ----------- (ii)
Add (i) to (ii)
2a = 1.0383
Tan2a = Tan 1.0383
= 1.697
HOPE IT HELPS YOU:-))
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