1. Solve for the unknowns x and y in the following nonlinear equation using Taylor's theorem. (Use Xo = 5 and yo = 5 for the initial approximation.) x2y - 3x2 = 75 x2 - y = 19 2. Solve for the unknown values x, y and z in the following three nonlinear equations using the Taylor series. (Use Xo = yo = Zo = 2 for initial approximations.) x2 - y2 + 2xy + Z =4 -x + y+Z=4 -2x2 - y + 23 = 23