okay I know that d/dxhttp://www.mathgoodies.com/forums/im...h_integral.giff(t)dt fromato x is f(x) but what happens if x is the lower limit instead of the upper limit? So from x toa. Does it become negative? Thanks.

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- Nov 9th 2008, 09:15 AMelitespartVariable limits of intergration[resolved]
okay I know that d/dxhttp://www.mathgoodies.com/forums/im...h_integral.giff(t)dt from

*a*to x is f(x) but what happens if x is the lower limit instead of the upper limit? So from x to*a*. Does it become negative? Thanks. - Nov 9th 2008, 09:25 AMKrizalid
Yes by simple property $\displaystyle \int_{a}^{b}{f}=-\int_{b}^{a}{f}.$

- Nov 9th 2008, 09:27 AMelitespart
cool. thanks.