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CBSE Class 10 Answered

cos^4Ø/cos^2ø +sin^4Ø/sin^2ø =1  Prove that cos^4ø/cos^2Ø + sin^4ø/sin^2Ø =1
Asked by guptaabhinav0809 | 28 Feb, 2019, 12:57: AM
answered-by-expert Expert Answer
begin mathsize 12px style fraction numerator cos to the power of 4 theta over denominator cos squared theta end fraction space plus space fraction numerator begin display style sin to the power of 4 end style begin display style theta end style over denominator begin display style sin squared end style begin display style theta end style end fraction space equals space cos squared theta space plus sin squared theta space equals space 1 space end style
Answered by Thiyagarajan K | 28 Feb, 2019, 07:41: AM
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