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CBSE Class 10 Answered

square root of 1 plus cos A divided by 1 minus cos A end root space equals cos e c A plus c o t A
Asked by shakshi.pole | 29 Sep, 2018, 12:20: PM
Expert Answer
begin mathsize 16px style square root of fraction numerator 1 space plus space cosA over denominator 1 space minus space cosA end fraction end root space equals space cosecA space plus space cotA straight L. straight H. straight S space equals space square root of fraction numerator 1 space plus space cosA over denominator 1 space minus space cosA end fraction end root space space space space space space space space space space space equals square root of fraction numerator 1 space plus space cosA over denominator 1 space minus space cosA end fraction cross times fraction numerator 1 space minus space cosA over denominator 1 space minus space cosA end fraction end root space space space space space space space space space space space space equals space square root of fraction numerator 1 space minus space cos squared straight A over denominator left parenthesis 1 space minus space cosA right parenthesis squared end fraction end root space space space space space space space space space space space equals square root of fraction numerator sin squared straight A over denominator left parenthesis 1 space minus space cosA right parenthesis end fraction end root space space space space space space space space space space space equals fraction numerator sinA over denominator 1 minus space cosA end fraction cross times fraction numerator 1 space plus space cosA over denominator 1 space plus space cosA end fraction space space space space space space space space space space space equals fraction numerator sinA left parenthesis 1 space plus space cosA right parenthesis over denominator 1 space minus space cos squared straight A end fraction space space space space space space space space space space space equals fraction numerator sinA left parenthesis 1 space plus space cosA right parenthesis over denominator sin squared straight A end fraction space space space space space space space space space space space equals fraction numerator sinA over denominator sin squared straight A end fraction space plus space fraction numerator sinAcosA over denominator sin squared straight A end fraction space space space space space space space space space space space equals space 1 over sinA space space plus space cosA over sinA space space space space space space space space space space space space space equals space cosecA space plus space cotA space space space space space space space space space space space equals space straight R. straight H. straight s end style
Answered by Yasmeen Khan | 30 Sep, 2018, 03:35: PM

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