can anyone solve this? cot a- tan a =2cot 2a
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I think this question is incomplete
profswh:
it isn't incomplete. check the answer below
Ok
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cot a - tan a = 2 (cot2a - 1)//2cot a
cot2a - 1 = cot2a - 1
both sides should be equal to zero
cot2a = 1
cot a = 1
a = 45 degree
cot2a - 1 = cot2a - 1
both sides should be equal to zero
cot2a = 1
cot a = 1
a = 45 degree
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