If then the angle between a and b is | CGP Edu

Maths Vector Algebra Direction Cosine of the Vectors, Angles Between the Vectors Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 11, 2026

If then the angle between a and b is

A

Acute

B

Obtuse

C

D

Text Solution

Verified by Experts

The correct answer is:

Squaring both sides, we get

⇒ ⇒ ⇒ ⇒ . Hence , (acute).

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