Bonjour
Mettre le résultat sous la forme aVb :
V12 + 3V75 - 2V300
= V(3 x 4) + 3V(25 x 3) - 2V(3 x 4 x 25)
= V(3 x 2^2) + 3V(5^2 x 3) - 2V(3 x 2^2 x 5^2)
= 2V3 + 3 x 5V3 - 2 x 2 x 5V3
= 2V3 + 15V3 - 20V3
= (2 + 15 - 20)V3
= -3V3
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Bonjour
Mettre le résultat sous la forme aVb :
V12 + 3V75 - 2V300
= V(3 x 4) + 3V(25 x 3) - 2V(3 x 4 x 25)
= V(3 x 2^2) + 3V(5^2 x 3) - 2V(3 x 2^2 x 5^2)
= 2V3 + 3 x 5V3 - 2 x 2 x 5V3
= 2V3 + 15V3 - 20V3
= (2 + 15 - 20)V3
= -3V3