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ICSE Class 10 Answered

tan^2 a - sin^2 a =
Asked by prashanshajain35 | 16 Sep, 2020, 02:20: PM
Expert Answer
tan2a - sin2
equals fraction numerator sin squared a over denominator cos squared a end fraction minus sin squared a
equals sin squared a open parentheses fraction numerator 1 over denominator cos squared a end fraction minus 1 close parentheses
equals sin squared a open parentheses fraction numerator 1 minus cos squared a over denominator cos squared a end fraction close parentheses
equals sin squared a open parentheses fraction numerator sin squared a over denominator cos squared a end fraction close parentheses
equals fraction numerator sin to the power of 4 a over denominator cos squared a end fraction
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