GATE CS 2022 : Engineering Mathematics -3

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Question 1

Given that: A= and I= the value of A³ is

• A
• B
• C
• D21 A + 30 I

Question 2

The inverse of matrix, is given by The sum of a+b+c+d is ____

• A0
• B2
• C4
• D6

Question 3

Consider the following matrix B.

If B is invertible, which one of the following could be first coloum of B-¹

• A
• B
• C
• D

Question 4

A and B are two given matrices such that the order of A is 3 x 4. If A’B and B’A are both defined then order of BA' is

• A3 x 4
• B4 x 4
• C3 x 3
• D4 x 3

Question 5

Identity matrix is ____

• AScalar matrix
• BDiagonal matrix
• CBoth A and B
• DNeither A nor B

Question 6

Assume that A is an invertible matrix. If and then =_____.

• A
• B
• C
• D

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