Differentiate f (t) = t - 3 with respect to t using the quotient rule, du du d V. u - da dac dx v f' (t ) = d dt t 3 (t - 3) . COIN - it . 1 = (t - 3)2 COIN t 3 301 t 3) 2 Coll COIN t3 = (t - 3)2 CO H t3 - t-3 t - 3) 2 COIN Coll COIN = (t - 3)2