Problem 1.28 of [Ulaby and Yagle, 2018]: Compute the following: \text { 1) } y_{1}(t)=\int_{t} t^{3} \delta(t-2) d t \text {. } \text { 2) } y_{2}(t)=\int_{t} \cos (t) \delta(t-\pi / 3) d t \text { 3) } y_{3}(t)=\int_{t=-3}^{-1} t^{5} \delta(t+2) d t