12. Find an equation for the plane tangent to the graph of the function f(x, y) = √√y + cos²(x) at the point (0,3,2). Use this equation to estimate the value of V 3.02 + cos² (.01).
12. Find an equation for the plane tangent to the graph of the function f,y= y+cos2at the point0,3,2.Use this equation to estimate the value of /3.02+cos2.01