Answered

20 Effectue les calculs suivants :
A = (-2) × (-3) x (+5)
B = (-3) x (-2) × (-4)
C = (+6) x (-1) × (+3)

Sagot :

MOZI

Bonjour,

Règles à utiliser : (-1)²ⁿ = 1 et (-1)²ⁿ⁺¹ = -1

A = (-2) × (-3) × (+5) = (-1)² × 2 × 3 × 5 = 30

B = (-3) × (-2) × (-4) = (-1)³ × 3 × 2 × 4 = - 24

C = (+6) × (-1) × (+3) = (-1)¹ × 6 × 1 × 3 = - 18

NINADZ16

BONJOUR

Régle a utiliser (-1)2n = 1 et (-1) 2n+1= -1

A= (-2) x (-3) x (+5) = (-1)2 x 2 x3 x 5 = 30

B= (-3) x (-2) x (-4) = (-1)3 x 3 x 2 x4 =-24

C= (+6) x (-1) x (+3) = (-1)1 x 6 x1 x3=-18

BONNE FIN DE JOURNéE