bonjour
a = 1/3 et b = - 3 /5
ab = 1/3 * - 3 /5 = - 3 /15 = - 1 /5
a/b = 1 /3 x - 5/3 = - 5 /9
b² = ( - 3 /5)² = 9 /25
a = 3 x 10 ⁴ et b = 10 ³
a = 30 000 et b = 1 000
ab = 3 x 10 ⁷ = 30 000 000
a/b = 3 x 10⁴ / 10 ³ = 3 x 10 = 30
a = 2 √12 et b = - 3 √3
ab = ( 2 √12 ) ( - 3 √3) = - 6 √36 = - 36
a /b = 2 √12 / - 3 √3 = 2 √12 ( - 3 √3) / ( - 3 √3)² = - 6 √36 / 27 = - 36 /27 = - 4 /3
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bonjour
a = 1/3 et b = - 3 /5
ab = 1/3 * - 3 /5 = - 3 /15 = - 1 /5
a/b = 1 /3 x - 5/3 = - 5 /9
b² = ( - 3 /5)² = 9 /25
a = 3 x 10 ⁴ et b = 10 ³
a = 30 000 et b = 1 000
ab = 3 x 10 ⁷ = 30 000 000
a/b = 3 x 10⁴ / 10 ³ = 3 x 10 = 30
a = 2 √12 et b = - 3 √3
ab = ( 2 √12 ) ( - 3 √3) = - 6 √36 = - 36
a /b = 2 √12 / - 3 √3 = 2 √12 ( - 3 √3) / ( - 3 √3)² = - 6 √36 / 27 = - 36 /27 = - 4 /3