For the system which of the following statements are correct?
(A) The system has no solution.
(B) The system is consistent.
(C) It has infinitely many solutions.
(D) It has a unique solution.
Choose the correct answer from the options given below:
For the system which of the following statements are correct?
(A) The system has no solution.
(B) The system is consistent.
(C) It has infinitely many solutions.
(D) It has a unique solution.
Choose the correct answer from the options given below:
Solution
The system can be written as:
This gives two equations:
... (1)
... (2)
Multiply equation (1) by :
This is identical to equation (2). Both equations represent the same line.
The determinant of the coefficient matrix:
When the determinant is zero, the system either has no solution or infinitely many solutions.
Since both equations are identical (not contradictory), every point on the line is a solution.
Therefore:
(A) The system has no solution - False
(B) The system is consistent - True (has at least one solution)
(C) It has infinitely many solutions - True
(D) It has a unique solution - False
The correct statements are (B) and (C) only.
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