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Someone please tell me how do i do question number 24. of ex 3.3 NCERT CLASS 11th????? |
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Answer» cos 4x=1-8sin^2x cos^2x LHS=cos 4x=1-2sin^2 2x1-2(2sinx cosx)^21-2(4sin^2x cos^2x)1-8sin^2x cos^2x=RHS With the help of your brain.. |
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