bjr
ex 7
1/9x9 = 1/9² = 9⁻²
1/7x7x7 = 1/7³ = 7⁻³
tu as compris - tu peux finir
ex 8
1/10x10x10x10 = 1/10⁴ = 10⁻⁴
tu peux faire le b
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bjr
ex 7
1/9x9 = 1/9² = 9⁻²
1/7x7x7 = 1/7³ = 7⁻³
tu as compris - tu peux finir
ex 8
1/10x10x10x10 = 1/10⁴ = 10⁻⁴
tu peux faire le b