Chapitres
"V" signifie "racine de"
Calculer
A=V49
=V(7²)
=7
B=-5V16
=-5V(4²)
=-5*4
=-20
C=2V9
=2V(3²)
=2*3
=6
D=V16/V36
=V(4²)/V(6²)
=4/6
=2/3
Simplifier et donner le résultat sous la forme aVb
A=3V18-V2+5V8
=3V(2*3²)-V2+5V(2*2²)
=3V2*V(3²)-V2+5V2*V(2²)
=3*3V2-V2+2*5V2
=9V2-V2+10V2
=(9-1+10)V2
=18V2
B=6V3+2V75
=6V3+2V(3*5²)
=6V3+2V3V(5²)
=6V3+2*5V3
=6V3+10V3
=(6+10)V3
=16V3
C=V160+3V40
=V(2*5*4²)+3V(2*5*2²)
=V2*V5*V(4²)+3V2*V5*V(2²)
=4V2*V5+3*2V2*V5
car V2*V5=V(2*5)=V10
=4V10+6V10
=(4+6)V10
=10V10
D=V600-4V24
=V(3*2*10²)-4V(3*2*2²)
=V3*V2*V(10²)-4V3*V2*V(2²)
=10V3*V2-8V3*V2
car V3*V2=V(3*2)=V6
=10V6-8V6
=(10-8)V6
=2V6
E=V128+V18-2V2
=V(2*8²)+V(2*3²)-2V2
=V2*V(8²)+V2*V(3²)-2V2
=8V2+3V2-2V2
=(8+3-2)V2
=9V2
F=3V50+V200
=3V(2*5²)+V(2*10²)
=3*5V2+10V2
=15V2+10V2
=(15+10)V2
=25V2
G=V1331-2V99+5V44
=V(11*11²)-2V(11*3²)+5V(11*2²)
=V11*V(11²)-2V11*V(3²)+5V11*V(2²)
=11V11-2*3V11+5*2V11
=11V11-6V11+10V11
=(11-6+10)V11
=15V11
H=3V490-V10
=3V(2*5*7²)-V10
=3V2*V5*V(7²)-V10
=7*3V2*V5-V10
=21V2V5-V10
car V2V5=V(2*5)=V10
=21V10-V10
=(21-1)V10
=20V10
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P=v200-4v3×v6