Pour la question 2 svp ! Jai calculer E=12

E  = 2/3 + 17/2x4/3
1)
E = 2/3 + 17x2/3
E = 2/3+34/3
E = 36/3
E = 12

F = √6x√3x√16/√2
F = √3x√2x√3x√16/√2
F = (√3)²x√4²
F = 3x4
F = 12    on a bien E = F

2)
G =(10⁻¹+a)x10²
E = G
 ⇔(10⁻¹+a)x10² = 12
⇔ 10+ax10² = 12
⇔ ax10² = 12-10
⇔ ax10² = 2
⇔ a = 2/10²
⇔ a = 2x10⁻²
⇔ a = 0,02