Bonjour Calculer u6pour chacune des suites A)2×(0.5) puissance n B) 0.2×(1.3)puissance n C)3×2puissance n

Bonsoir,

A) [tex]2\times 0.5^6=2\times\left(\dfrac{1}{2}\right)^6=2\times\dfrac{1}{64}=\dfrac{1}{32}\approx 0.031[/tex]

B) [tex]0.2\times 1.3^6=\dfrac{1}{5}\times\left(\dfrac{13}{10}\right)^6=\dfrac{1}{5}\times\dfrac{13^6}{10^6}=\dfrac{13^6}{50^6}\approx 0.965[/tex]

C) [tex]3\times2^6=3\times64=192[/tex]

bonsoir,

a)
2*(0.5)^6 = 2* 0.0156 ≈ 0.312

b)
0.2 * (1.3)^6 = 0.2 *4.826 ≈ 0.857

c)
3 * 2^6 = 3 * 64 = 192

voilà (: