Problem 3: Use the product rule to nd the following derivatives. Leave your answer in the form f' (a?) g (a?) + f (a?) g' (2:) That is, do not simplify. (a) s (t) = t3 cos (it) (b) Fty) = (1; y'i) (y+5y3) (e) y = 1'2 sin (a?) tan (a?) Problem 4: Use the quotient rule to nd the following derivatives. Leave your answer in the form W . That is do not simplify 903) E ' 5322 (b) Gm : 2x+1