Hello, macabre!

By changing the order of integration, evaluate:

. . y=4 . .x=y^½

. . ∫ . . . ∫ . . e(y/x) dx dy

. .y=0 . . x=½y

Draw a sketch of the area and directions of integration.Code:| 4+ * | *:| | *::*| | *:::* | | *:::* | - * - - - - + - | 2

. . x=2 . y=2x

. . ∫ . . .∫ . . e^{y/x} dy dx

. . x=0 . y=x²