Salut momo
Indications :
1) (fg)'=f'g+fg'
2) d/dx(e^x) = e^x
Ou d'une autre manière :
1) (fog)'=g'*(f'og)
2) d/dx(e^x) = e^x
A toi de jouer
A plus
Some folks are born made to wave the flag, ooo, they’re red, white and blue.
And when the band plays "Hail to the Chief", ooo, they point the cannon at you, y’all!