Mathematics · System of Linear Equations
Let AX = B be a system of 3 linear equations with 3 unknowns. Let X 1 and X 2 be its two distinct solutions. If the combination aX 1 + bX 2 is a solution of AX = B, where a and b are real numbers, then which one of the following is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1a = b
- 2a + b = 1✓
- 3a + b = 0
- 4a - b = 1
Correct answer
a + b = 1
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