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ICSE Class 10 Answered

Cos2A+tan2A-1/sin2A=tan2A
Asked by vaibhav | 05 Feb, 2018, 11:04: AM
answered-by-expert Expert Answer
begin mathsize 16px style fraction numerator cos squared x plus tan squared x minus 1 over denominator sin squared x end fraction
equals fraction numerator begin display style cos squared x plus tan squared x minus sin squared x minus cos squared x end style over denominator begin display style sin squared x end style end fraction
equals fraction numerator tan squared x minus sin squared x over denominator sin squared x end fraction
equals sec squared straight x minus 1
equals tan squared straight x end style
Answered by Arun | 05 Feb, 2018, 04:55: PM
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