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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: howdo i integrate cos^2 x - cos^4 x
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[Post New]7 Oct 2008 01:39:42 IST
    Subject: howdo i integrate cos^2 x - cos^4 x
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Sheira (0)

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howdo i integrate cos^2 x - cos^4 x
    
[Post New]7 Oct 2008 01:52:28 IST
    Subject: Re:howdo i integrate cos^2 x - cos^4 x
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deedee (2203)

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write it as cos^2x(1-cos^2x)


wich trun out 2 b sin^2x*cos^2x nw multiply and divide by 4  so u hav


(sin2x)^2/4


write it s (1-cos4x)/4


nw hope u can int this!
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[Post New]7 Oct 2008 08:13:27 IST
    Subject: howdo i integrate cos^2 x - cos^4 x
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sovanANNA (50)

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break cos^2 x to (1+ cos 2x)/2
(1+cos 2x)/2 -(1+cos 2X)^2 /4
on integrating X/2-sin2x/2-integration of (cos^2 2x)4
apply above method to integrate cos^2 2x
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[Post New]7 Oct 2008 08:14:37 IST
    Subject: howdo i integrate cos^2 x - cos^4 x
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sovanANNA (50)

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please rate the answer
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