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If cosA=3/5 find 9cot2A-1 |
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Answer» Srry it ws wrng by mistake CosA=B/H= 3/5=>B=3x and H=5xThus P = 4x CotA=B/P9CotA2A-1= 9X 3x/4x-1=6 65/16 |
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