1. Find y' from y = (1+ x2)2 sinh-1 x - x 2. Trace the curve y?"= 10x2 - 7x3 +x4 3. Find, to three decimal places, the cube root of 2. 4. Find the first and second derivatives of y with respect to x from the parametric equation x = 1+ t2, y = 4t - 3 5. Find the partial derivative of z = x3 - xy2 + 3y