✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
If $\Delta_1 = \begin{vmatrix} 1 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 3 \end{vmatrix}$ and $\Delta_2 = \begin{vmatrix} 0 & 2 & 0 \\ 1 & 0 & 0 \\ 0 & 0 & 6 \end{vmatrix}$, then
A
$\Delta_1 = 2\Delta_2$
B
$\Delta_2 = -2\Delta_1$
C
$\Delta_1 = \Delta_2$
D
$\Delta_2 = -\Delta_1$
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 65-1 | Set 1 | Question 4 |
| CBSE 2026 | Series 65-1 | Set 2 | Question 15 |
| CBSE 2026 | Series 65-1 | Set 3 | Question 8 |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)