prive that cotA-tanA=2cot2A
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(b/p)-(p/b)
b^/p^-p^/b^
b^-p^/pb
But in 2cotA
(b/p)^
b^/p^
so,cotA-tanA is not equal to 2cot A
b^/p^-p^/b^
b^-p^/pb
But in 2cotA
(b/p)^
b^/p^
so,cotA-tanA is not equal to 2cot A
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