I.1.78 Double Integrals

Condition: calculate the double integral from the function \ (f (x, y) \) in the specified rectangular region: \ [f (x, y) = \ frac {1} {(x+y) {2}, \ quad X \ in [3.4], \ quad y \ in [1.2] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \] \]

Double and itieded integrals over Various Areas of Integration, Conversion from Cartesian to Polar Coordinates, Calculation of the Jacobian, Changing the Integration, Transformation of Variables in the Integral.