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(छ (0 1९ छाए ० 30 3० SR 30, (21 89%) का मान हैं। |
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Answer» tan 1 . tan 2 . tan 3 ... tan 87 . tan 88 . tan 89 = LHS tan 1 . tan 2 . tan 3 ... tan (90 - 3 ) . tan ( 90 - 2 ) . tan ( 90 - 1) tan 1 . tan 2 . tan 3 ... cot 3 . cot 2 . cot 1 tan 1 . cot 1 . tan 2 . cot 2 . tan 3 . cot 3 ... tan 89 . cot 89 1 x 1 x 1 x 1 x ... x 1 As 1ⁿ = 1 = RHS Where n = any positive integer hit like if you find it useful |
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