Q2 of 75 Page 8

Mark the correct alternative in the following:

The number of solutions of the system of equations: x – 3y + 2z = 1, is


x + 4y – 3z = 5


The given system of equations is :-


x– 3y +2z = 1


x + 4y – 3z = 5


As there are three variables x,y,z and we have only two equations so it is impossible to find the solution. Thus, no solution exists for this system of equations.

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8

Solve the following systems of homogeneous linear equations by matrix method:

2x + 3y – z = 0


x – y – 2z = 0


3x + y + 3z = 0

 1

Mark the correct alternative in the following:

The system of equation x + y + z = 2, 3x – y + 2z = 6 and 3x + y + z = –18 has


 3

Mark the correct alternative in the following:

Let and If AX = B, then X is equal to


 4

Mark the correct alternative in the following:

The number of solutions of the system of equations:


2x + y – z = 7


x – 3y + 2z = 1, is


x + 4y – 3z = 5