Taylor polynomials in 0/R/Degree 4/Sin(cos(z) ) +z^3 exp (z^2)/Exercise

Find the Taylor polynomials in ${\displaystyle {}0}$ up to degree ${\displaystyle {}4}$ of the function
${\displaystyle f\colon \mathbb {R} \longrightarrow \mathbb {R} ,x\longmapsto \sin {\left(\cos x\right)}+x^{3}\exp {\left(x^{2}\right)}.}$