Sagot :
C= -2V8+3V50 - 7V18
=-2V(4*2)+3*V(25*2)-7*V(9*2)
=-2*2V2+3*5V2-7*3V2
=-4V2+15V2-21V2
=-10V2
=-2V(4*2)+3*V(25*2)-7*V(9*2)
=-2*2V2+3*5V2-7*3V2
=-4V2+15V2-21V2
=-10V2
C= -2V8+3V50 - 7V18 =-2V(4*2)+3*V(25*2)-7*V(9*2) =-2*2V2+3*5V2-7*3V2 =-4V2+15V2-21V2 =-10V2