Verify that u = ex²-y² satisfies a2u/ax2 + a2u/ay2=f (x,y)
with suitable f = 4(x² + y²)ex²-y² 0x² dy² Q.3 Verify that u = ex²-y² satisfiesa2u/ax2 + a2u/ay2=f (x,y)
with suitable f = 4(x² + y²)ex²-y²