username22
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Report Thread starter 11 years ago
#1
how do you simplify \int \sqrt{9a^2 (cos^4tsin^2t +sin^4tcos^2t)} \\
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silent ninja
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Report 11 years ago
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what is square root of: 9? a^2?

Then factor out sin^2tcos^2t and square root that. See what you are left with and go from there.
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username22
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#3
Report Thread starter 11 years ago
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okay, thank you! that's been bothering me for ages.
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