## Abhisar one year ago Integration Help - II

$$\large\color{black}{ \displaystyle \int{}8x^3\sqrt{x^4+5} ~dx }$$ $$\large\color{black}{ \displaystyle \int{}x\cos(x^2)~dx}$$ (I am using x, but it can be any other letter, I am just used to x) $$\large\color{black}{ \displaystyle \int{}x(x^4-1)~dx}$$ (this is a little more advanced tho)