The distance of the point from the line , measured parallel to the line , is equal to
- (A)
- (B)
- (C)
- (D)✓ Correct
Answer: (D)
Solution
The line has slope , i.e. inclination , so a unit vector along it is .
A general point on the line through in this direction is .
This point must lie on :
.
Rationalising: .
The required distance is .
A general point on the line through in this direction is .
This point must lie on :
.
Rationalising: .
The required distance is .

JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Single correct option