(2) (4 marks) If it is known that f (7) = 0 and f' (7) = 10, nd $135 W Hint: use the denition of a derivative. (3) (4 marks) Find values of A, B and C such that the given function is differentiable every- where. _ smgf 171\" (D > 1 h(L') = B a: = 1 CR/sTH-l $