If and , then the value of is (where is unit matrix of …

Maths Matrices and Determinants MHT CET Previous Year Question Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

If and , then the value of is (where is unit matrix of order 3 )

-25

-85

Text Solution

Verified by Experts

The correct answer is:

: and

We know that,

Now,

(Expanding along )

──────────────────────────────────────────────────────────────────────────────────────────

Previous Question Next Question

Get practice questions, solutions, and test series in one place.

Share your experience with this question and solution.

Send your comment, doubt, correction, or feedback to admin.

What students say about this solution

No reviews yet. Be the first to write a review.