Réponse :
simplifier cette fraction
R x R2/(R + R2) x E/[(R x R2/(R+R2)] + R1
= R x R2/(R + R2) x E/[(R x R2/(R+R2)] + R1(R + R2)/(R+R2)
= R x R2/(R + R2) x E/[(R x R2 + R1 x R + R1 x R2)/(R+R2)
= R x R2 x (R + R2)/(R + R2) x (R x R2 + R1 x R + R1 x R2) x E
= R x R2/(R x R2 + R1 x R + R1 x R2) x E
Explications étape par étape :
