Please need an answer to these 3 asap

Let w = -4zy + 2yz + zz, = = st, y = est, ", 2 = 12 Compute Ow (-3, 3) = Ow at -(-3, 3) - Suppose z - 2 sin(y) , 2 - 482 - 312, y - 8st. A. Use the chain rule to find %% and of " as functions of I, y, s and t. OL B. Find the numerical values of oz and & when (s, t) = (-1, -3) Oz (-1, 3) = # (-1, -3) - Suppose w = I y -, where y 2 1 = e, y = 2 + sin(4t), and z = 2 + cos(5t) dw 1. Use the chain rule to find - dt as a function of I, y, z, and t. Do not rewrite I, y, and z in terms of t, and do not rewrite e" as I dw dt Note: Your answer should be an expression in a, y, z, and t, e.g. "3x - 4y + 2t" hs 2. Use part 1. to evaluate - dw dt when t = 0