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A+B+C=π and cosA =cosBcosC then cotBcotC= Options1) 0 2)1 3)1/2 4)1/6 Answer is option 3 |
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Answer» A+B+C=π and cosA =cosBcosC then cotBcotC= Options1) 0 2)1 3)1/2 4)1/6 Answer is option 3 |
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