Maths-
General
Easy
Question
If B is non-singular matrix and A is a square matrix of same size, then det (B–1 AB) =
- |A–1|
- |B–1|
- |B|
- |A|
The correct answer is: |A|
|B–1 .A.B| = |B–1|. |A| . |B|
= (|B–1|. |B|). |A|
= 1 × |A| (
|B–1|. |B| = 1)
= |A|
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chemistry-General