Mathematics · Linear Equations
The system of linear equations kx + y + 1 = 0 and x + ky + 2 = 0 has a unique solution if:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1k ≠ ±1✓
- 2k = ±2
- 3k = 1
- 4k = -1
Correct answer
k ≠ ±1
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