✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
Which of the following properties is/are true for two matrices of suitable orders ?
(i) $(A + B)' = A' + B'$
(ii) $(A - B)' = B' - A'$
(iii) $(AB)' = A'B'$
(iv) $(kAB)' = kB'A'$ ($k$ is a scalar)
A
(i) only
B
(i), (ii) and (iii)
C
(i) and (ii)
D
(i) and (iv)
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 65-1 | Set 1 | Question 3 |
| CBSE 2026 | Series 65-1 | Set 2 | Question 14 |
| CBSE 2026 | Series 65-1 | Set 3 | Question 7 |
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)