1. Find an equation of the tangent line to the curve y = = , at the point (3, 2). 2. Find the derivative of y(r) defined at x = 1, y = 3 by the equation 1' - 2x y + 3xy' - 22 = 0 3. Find the partial derivatives, the gradient and the Hessian of the following function f(x, y) = (23/5 + 3/5) 5/3 4. Find the partial derivatives, the gradient and the Hessian of the following function f(x, y) = (x1/5 + yl/5)3