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Sagot :

VINS

bonsoir

A = - 102 x 10 ⁻³   =  - 0.102

B = 9  x 10  ¹⁰  = 90 000 000 000

C = - 15 x 10⁶ : 12 x 10 ⁶

  = - 15/12 x 10 ⁰

  = - 15/12 x 1

  = - 15/12  = - 5/4

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