Class 12 Determinants · Mcq Single Correct1 Marksdeterminant_equations
Class 12 Maths · Determinants · Mcq Single Correct #1
If \(\begin{vmatrix}2 & 4\\5 & 1\end{vmatrix}\)=\(\begin{vmatrix}2x & 4\\6 & x\end{vmatrix}\), find all real x.
✅ Step-by-Step Solution
Final Answer: Option (D): ±√3
- Expanding gives −18=2x²−24, so x²=3 and x=±√3.
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CBSE Class 12 Mathematics 2026 Main Paper 65/1/1 · Q4
If Δ₁ = | 1 0 0; 0 2 0; 0 0 3 | and Δ₂ = | 0 2 0; 1 0 0; 0 0 6 |, then