am nevoie de ex 2va rog
Anexe:
Răspunsuri la întrebare
Răspuns de
1
a= -2x-3y+5z
b=-x+2y-3z
a) 2a-b=2(-2x-3y+5z)-(-x+2y-3z)= -4x-6y+10z+x-2y+3z= -3x-8y+13z
b) a+3b= -2x-3y+5z +3(-x+2y-3z)= - 2x-3y+5z-3x+6y-9z= -5x+3y-4z
b=-x+2y-3z
a) 2a-b=2(-2x-3y+5z)-(-x+2y-3z)= -4x-6y+10z+x-2y+3z= -3x-8y+13z
b) a+3b= -2x-3y+5z +3(-x+2y-3z)= - 2x-3y+5z-3x+6y-9z= -5x+3y-4z
Răspuns de
1
a=2x-3y+5z-4x=>a-(2*x-3*y+5*z-4*x)=0=>1+2x+3x-5z=0=>-1*(2x+3y-5z)=0
a=o
b=-x+y-3z-2y=>b-(-x+*y-3*z-2y)=0=>b+x-2y+3z=0
b=0
2a-b=(2*0)-0=0
a+3b=>0+(3*0)=0
a=o
b=-x+y-3z-2y=>b-(-x+*y-3*z-2y)=0=>b+x-2y+3z=0
b=0
2a-b=(2*0)-0=0
a+3b=>0+(3*0)=0
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