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If cos + sin =5/2 then cos^2 + sin ^2 |
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Answer» (Cos+sin)^2=5/2^2Cos^2+2cos.sin+sin^2=25/4Cos^2+sin^2=25/4-2Cos^2+sin^2=17/4 cos^2+sin^2=1 Please help I want answers of this chapter Chapter 6 triangle |
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