Hlo ! Here we need to prove , Tell I m correct or not...tell my mistakes also.Post correct answer .11th class maths trigo
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manasiriya2003:
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your mistake u cannot take cos outside and only add angles together because we know cosA+cosB not equals cos(A+B)
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here is ur answer galti to tujhe pta hi h ab 2 logo ne bta di
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