Ques#1

Find local extreme values of (,)=^$+^44+1.

Evaluate given Integral by reversing the order of integration. cos(2) ,(stplane) the limit of 1st integral sign is 0 to 3 and for 2nd is t^2 to 9

Q#3

Evaluate (3?+4?2)jQuery22406216820344084766_1593492131238 by changing it into polar coordinates over the region in upper half plane bounded by the circles 2+2=1 and 2+2=4.

Q#4

If (,,)= 2 +(2+3) +33, find potential function (,,) such that =.