Knowledge and Understanding l. Differentiate each of the following and factorlsimplify your answer as much as possible. ( 2,2,33, marks) a) [(x) = (sin x2 + cos Jr)3 [1) f(x) = cos(23x) 3'5:an d) f(x) = 3 "m 1 2' C) f (x) . I 8 2. Determine to the nearest hundredth, the slope of the tangent to y = sis n x where x = 3. (K Zmarks)