CAT 2020 Slot 3 QA · Question 15
Let k be a constant. The equations kx + y = 3 and 4x + ky = 4 have a unique solution if and only if
- A.|k| = 2
- B.k ≠ 2
- C.|k| ≠ 2
- D.k = 2
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Show answerLet k be a constant. The equations kx + y = 3 and 4x + ky = 4 have a unique solution if and only if
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