Find an equatien of the tangent plane to the surface at the given point. We as) = x2 Err + 19. I24, 9; 25} 1e~c + 10}! 25 x Examine the function for relative extrema and saddle points. (If an answer does not exist, enter DNE.) g(x, y) = x2 - y2 - 5x - By (x , y, Z ) = ONEUse Lagrange multipliers to find the indicated extrema of f subject to two constraints. Assume that x, y, and z are nonnegative. Maximize f(x, y, z) = xyz Constraints: x + y + z = 24, x - y + z = 12 FC =