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Integral Calculus

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6 Jan 2012 19:40:14 IST

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integrate dx/5+sin 4x

Mathematics

integrate dx/5+sin 4x

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saurav

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Joined: 30 May 2010

Posts: 48

7 Jan 2012 04:37:04 IST

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Put 4x=t.it is a standard integral now.sint=2tan(t/2)/[1+tan^2(t/2)].also put tan(t/2)=z.so that dz=sec^(t/2)/2=[1+tan^2(t/2)]/2

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