✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
If $| \vec{a} | = 5$ and $-2 \le \lambda \le 1$, then the sum of greatest and the smallest value of $| \lambda \vec{a} |$ is
A
$-5$
B
5
C
10
D
15
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 65-2 | Set 1 | Question 13 |
| CBSE 2026 | Series 65-2 | Set 2 | Question 6 |
| CBSE 2026 | Series 65-2 | Set 3 | Question 17 |
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)