solve please

Tutorial Exercise Evaluate fix, y. z) = Vxty+ 22 S: 2 = Vx2+ 2. (x - 1)2 +12 51 Step 1 Find the surface integral using the formula RX, v. 2) as = / / Rx, v. g(x, y))v 1 + g, (x, v)12 + 19 (x, y)12 dA. Here, g(x, y) = z = v x + y". Find the partial derivatives g. (x, y) and g,(x, y). 9,(x, y) = Vx+ v2 9,(x, y) =