Each of the limit expressions below correspond to the derivative of a function f at some number a . For each part, state the function f and the number a. a. lim ex+2-e-1 x - 3 x-3 F ( x ) = 2= b. lim Cos( h+7)+1 h -0 h f(8 )= 1. C. lim y -3 y - 1/3 y- 3 f(y ) = a=