appleduardo
whats the integral of cos (sqrt x) / (sqrt x) ???



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RadEn
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let u = sqrt(x)
then du = 1/2sqrt(x) dx or
2 du = 1/sqrt(x) dx
so, it can be :
dw:1365471110960:dw

RadEn
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it should can helps u

appleduardo
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:o thank you so much!

RadEn
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yw