1.

I: The system of equations x+y+z=6,x-y+z=2, 2x-y+3z=9 has unique solution. II: The system of equations x+y+z=3, 2x+2y-z=3,x+y-z=1 has infinitely many solutions

Answer»

only I is TRUE
only II is true
Both I, II are true
NEITHER I nor II are true

ANSWER :C


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