5. (5 points) You have probably experienced that ∫ −2 [[infinity],0] is not an integrable form. You might know that

this is related to a bell curve / normal distribution and its result is an error function with values that can be

calculated, so certainly there must be some way we can evaluate it. Do so by applying the theorem you

proved above and by making use of the polar coordinate system to evaluate ∫e−2x [[infinity],0]∙ ∫ −2 [0,[infinity]]