Réponses

2014-01-06T00:08:15+01:00
Bonsoir,

A=5x6-16 diviser par (4)-(15-8,1)
A=\dfrac{5\times6}{4}-(15-8,1)\\\\A=\dfrac{30}{4}-6,9\\\\A=7,5-6,9\\\\A = 0,6

B=6+24-66/3-9
B=6+24-\dfrac{66}{3}-9\\\\B=6+24-22-9\\\\B=-1


C=7+3x[(-1+5x2) diviser par 3-(10-7x2)-1]
C=7+3\times[\dfrac{-1+5\times2}{3}-(10-7\times2)-1]\\\\C=7+3\times[\dfrac{-1+10}{3}-(10-14)-1]\\\\C=7+3\times[\dfrac{9}{3}-(-4)-1]\\\\C=7+3\times[3+4-1]\\\\C=7+3\times6\\\\C=7+18\\\\C=25

D=-5/7+17/21
D=-\dfrac{5}{7}+\dfrac{17}{21}\\\\D=-\dfrac{15}{21}+\dfrac{17}{21}\\\\D=\dfrac{2}{21}

E=7/9-11/15
E=\dfrac{7}{9}-\dfrac{11}{15}\\\\E=\dfrac{35}{45}-\dfrac{33}{45}\\\\E=\dfrac{2}{45}