Bonsoir,
Ex9
[tex]a^{n} . b^{n} = (ab)^{n}[/tex]
A = 2³ * 5³ = (2*5)³ = 10³
F = (-4)⁶ * (-9)⁶ = (-4 * (-9))⁶ = 36⁶
H = 7⁷ * 5⁷ * 2⁷ * 10⁷ = (7 * 5 * 2 * 10)⁷ = 700⁷
I = (8/3)⁵ * (3/8)⁵ = (8 * 3 / (3 * 8))⁵ = 1⁵ = 1
J = 125 * (1/5)³ = 5³ * (1/5)³ = (5/5)³ = 1³ = 1
Et je vous laisse faire le autres.
Ex10
[tex]a^{n} / b^{n} = (a/b)^{n}[/tex]
A = 14⁴ / 7⁴ = (14/7)⁴ = 2⁴
K = 1⁴ / 0,5⁴ = (1/0,5)⁴ = 2⁴
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