If P, Q, R, S are the points (2, 3, -1), (3, 5,- 3), (1, 2, 3), (3, 5, 7) respectively. Then the projection of

### Question Asked by a Student from EXXAMM.com Team

Q 2127078881.     If P, Q, R, S are the points (2, 3, -1), (3, 5,- 3),

(1, 2, 3), (3, 5, 7) respectively. Then the projection of PQ

on RS is ......... and hence PQ and RS are ........................ ..
A

1, perpendicular

B

-1, perpendicular

C

0, perpendicular

D

2, perpendicular

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

#### Access free resources including

• 100% free video lectures with detailed notes and examples
• Previous Year Papers
• Mock Tests
• Practices question categorized in topics and 4 levels with detailed solutions
• Syllabus & Pattern Analysis