Derivatan av sammansatta funktioner

$$\begin{gathered} a\left)h^{\text{'}}\right(x)=g^{\text{'}}(x\left)f^{\text{'}}\right(g\left(x\right)\left) \\ {h}^{\text{'}}\right(2)=g^{\text{'}}(2\left)f^{\text{'}}\right(g\left(2\right))=(-4\left)f^{\text{'}}\right(-4)=-4\times -3=12 \\ b)p^{\text{'}}\left(x\right)=2g^{\text{'}}\left(x\right)g\left(x\right)f^{\text{'}}\left(g^2\right(x\left)\right) \\ {p}^{\text{'}}\left(1\right)=2g^{\text{'}}\left(1\right)g\left(1\right)f^{\text{'}}\left(g^2\right(1\left)\right)=2\times -2\times -1\times 2=8 \end{gathered}$$

Tack så mycket.