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posted by Darren Friday, January 25, 2013 at 4:53pm.
Calculate the area under the curve y=e^-x above the x axis on the interval [1, infinity). a. infinity b. 0 c. -1/e d. 1/e e. none of the above
integral e^-x dx = -e^-x so -e^-oo - (-e^-1) = 0 + 1/e
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