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Sagot :

1) a) 5/8 + 6/8 = 11/8
b) 18/6 - 8/6 + 5/6 = 5/2

2) (2x1000)2 = 2000(au carré) = 4000000


3)V9+16 = V25 = 5

3V6 x 2V8 = 24V3

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