Exercise 4.4.1 Find the derivatives of the functions. For extra practice, and to check your answers, do some of these in more than one way if possible. 169 (c) 8(1) = (12 + 1)3 (1) f ( t ) = V t (h) g(x) = V5 - Vx (p) h(x) = 1/ (x2+1)2+ 1+(x2+ 1)2