Mathematics · Determinants
If ⌈1 2 1⌉ ⌈2 3 1⌉ ⌊3 a 1⌋ is a non-singular matrix and a ∈ A, then the set A is defined as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ℝ − {4}✓
- 2{4}
- 3{0}
- 4ℝ
Correct answer
ℝ − {4}
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