integration Watch

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eek
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#1
Report Thread starter 13 years ago
#1
how would you integrate

2sintsec^2t

thanxs
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dvs
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#2
Report 13 years ago
#2
I = ∫ 2sint/cos²t dt

u = cost
du = -sint dt

I = -2 ∫ 1/u² du
= 2/u + C
= 2sect + C
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