2.A] Change the order of integration and hence evaluate \int_{0}^{\infty }\int_{x}^{\infty }\frac{e^{-y}}{y} dydx.
Answer:-
Change the order of integration and hence evaluate โซโซ๐^โ๐ฆ/๐ฆ ๐๐ฆ๐x
2.A] Change the order of integration and hence evaluate \int_{0}^{\infty }\int_{x}^{\infty }\frac{e^{-y}}{y} dydx.
Answer:-