ICSE Class 10 Answered

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Asked by siddharthjaiswal1122 | 22 Aug, 2018, 09:44: AM

Expert Answer

begin mathsize 16px style fraction numerator 1 plus cosA over denominator 1 minus cosA end fraction equals fraction numerator begin display style 1 plus cosA end style over denominator begin display style 1 minus cosA end style end fraction cross times fraction numerator begin display style 1 minus cosA end style over denominator begin display style 1 minus cosA end style end fraction equals fraction numerator begin display style 1 minus cos squared straight A end style over denominator begin display style open parentheses 1 minus cosA close parentheses squared end style end fraction equals fraction numerator sin squared straight A over denominator cos squared straight A open parentheses begin display style 1 over cosA end style minus 1 close parentheses squared end fraction equals fraction numerator begin display style fraction numerator sin squared straight A over denominator cos squared straight A end fraction end style over denominator open parentheses begin display style secA minus 1 end style close parentheses squared end fraction equals fraction numerator tan squared straight A over denominator open parentheses secA comma minus comma 1 close parentheses squared end fraction end style

Answered by Sneha shidid | 23 Aug, 2018, 11:02: AM

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