Math, asked by suman212003pdz455, 1 year ago

prove that: cotA.cot2A - cot2A.cot3A - cotA.cot3A = 1

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Answered by gunace865pdz3ok
8
I proved it ...............
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suman212003pdz455: thanks buddy
Answered by pankajroy2
0

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here is ur answer.........

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