rue-9.5 vvnicn of the following functions have a derivative of zero (0)? ft)\" = 9.8 b. x) = 11 C. x) : -4 + x d f{)() : Ex fix} = W 1'. f(x) = x g. fix) =3 h. flx) =2.8n Use the Power Rule to determine the derivative for each ofthe following. ft)\" = X b. x] = ix C. x) = K5 d_ it) = '3X4 _ 3 _ 5 3 _ E = i fix} - 1.5x f. fix] _ v\"? g. x) _ x h. x) V; Use the Product Rule to differentiate each of the following. flin