l. l[Ionsirer the function I Gm =f 4 t2 +5nu n {a} On what intervals is {3(3) increasing? {1:} At what value at" :1: is Gm} increasing the fastest? {Is} At what values ofm is Sign] = I]? {d} What is the absolute maximum value of GTE} on the interval 2 E [12}, on]? Give complete reasoning