The chain rule states that when y(x) = (u(x))" the derivative can be calculated as dy af of du du da da 1 For the function u(x) = y(z) = ( 2 5 + 4) (a) Define u(x) as used in the chain rule. . (b) What is as used in the chain rule? the derivative can be calculated as For the function 11 3/ z) = (2 52 + 4) 6 (a) Define u(x) as used in the chain rule. u(x) = (b) What is du dr dy (c) What is as used in the chain rule? dz || as used in the chain rule? d (d) What is the derivative of y(x) = (x - 5x + 4) ?