There is no elementary antiderivative function for 9(1) Therefore, we cannot calculate the following integral directly: I : / e'lzdax 0 However, the double integral enables us to calculate it as follows: a) We can write I2 as follows 12:(/ e-'12(la:)(/ e'\"2(ly):/ / f3 fluid/\"13% 0 0 n U Show the relation I(1ra"'2)5/ / r, '2'\"2(1m(1y31(1e'2\"2). 4 n 0 4 for any a > 0. b) Use the squeeze theorem and conclude I : % when a v 00 8:24 PM Q Search 2023711702 0