5.5 The Substitution Rule/7

Failed to parse (Conversion error. Server ("https://en.wikipedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle {\begin{aligned}&\int {x\cdot sin{(x^{2})}}dx\\[2ex]&\int {\cfrac {sin(t)}{2}}dt\\[2ex]&{\cfrac {1}{2}}\cdot \int {sin(t)}dt\end{aligned}}}