✓ 5 MARKS
Long Answer
🔥 APPEARED IN 3 BOARD SETS
(a) Find the distance of the point $\text{P}(2, 4, -1)$ from the line $\frac{x + 5}{1} = \frac{y + 3}{4} = \frac{z - 6}{-9}$.
OR
(b) Let the position vectors of the points $\text{A}$, $\text{B}$ and $\text{C}$ be $3\hat{i} - \hat{j} - 2\hat{k}$, $\hat{i} + 2\hat{j} - \hat{k}$ and $\hat{i} + 5\hat{j} + 3\hat{k}$ respectively. Find the vector and cartesian equations of the line passing through $\text{A}$ and parallel to line $\text{BC}$.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2025 | Series 65-6 | Set 1 | Question 30 |
| CBSE 2025 | Series 65-6 | Set 2 | Question 28 |
| CBSE 2025 | Series 65-6 | Set 3 | Question 27 |
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)