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Mathematics 15 Online
OpenStudy (anonymous):

calculate the integral: equation below

OpenStudy (anonymous):

\[\int\limits_{0}^{\pi}sinxdx\] the top one is pi

OpenStudy (anonymous):

Do you know how to integrate sinx ?

OpenStudy (raden):

i knowed,:P

OpenStudy (anonymous):

itd be cosx

OpenStudy (raden):

wrong, it should be -cosx

OpenStudy (anonymous):

2

OpenStudy (anonymous):

oh because derivative of sinx=cosx and cox=-sinx so anti derivateve would be -cosx and the answer would be 2

OpenStudy (anonymous):

its -cos x. So you substitute the upper limit minus the bottom limit into the integrated function. -cos pi - (-cos 0)

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

ok thanks.

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