Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If square matrix A is such that `3A^2 +2A^2 +5A+I = 0` then `A^-1` is equal to - Sarthaks eConnect
menu
search
Ask Question

Welcome to Sarthaks eConnect Question Bank

Practice Online Test Series for JEE Main 2018 & NEET 2018

If square matrix A is such that `3A^2 +2A^2 +5A+I = 0` then `A^-1` is equal to

If square matrix A is such that `3A^2 +2A^2 +5A+I = 0` then `A^-1` is equal to

A.

`3A^2+2A+5I`

B.

`–(3A^2+2A+5I)`
C.

`3A^2-2A-5I`

D.

none of these

Powered by Sarthaks eConnect
Powered by Sarthaks eConnect