Find the value of the integral(-p÷2)and (p÷2) v(cos x-cos ³x)dx

Question

Sunil Raikwar · Answer

cosx-cos 3 x=cosx(1-cos 2 x)=cosx.sin 2 x{this is an even function} put sinx=t then cosxdx=dt so required integral is 2integral{limit 0 to 1}t 2 dt=2[t 3 /3] 0 1 =2/3 ThanKs & Regards Sunil Raikwar askIITians faculty

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Find the value of the integral(-p÷2)and (p÷2) v(cos x-cos ³x)dx

Find the value of the integral(-p÷2)and (p÷2) v(cos x-cos ³x)dx

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