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Sagot :

Bonsoir,

0,2 m = 20 cm

3 cm² = 0,0003 m²

0,6 nm = 6×10⁻¹⁰ m

3 V = 3000 mV

9 Go = 9 000 000 000 o

100 pm = 1×10⁻¹⁰ m

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