Published by:
CGP EDU Academic Team
Published on: August 11, 2026
The vectors 
= 3i + 2j + 2k & 
= –i – 2k are adjacent sides of a parallelogram then angle between diagonals is
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(b, d)
The diagonal 
= 
+ 
= 2 i + 2 j And 
= 
– 
= –4 i –2 j – 4 k ∴ | 
| = 
, | 
| = 6
∴ Angle between diagonals is ⇒ 
= cos θ
⇒ Q = 45 0 or 135 0
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