Matrix multiplication A² = A (Jee Mains) | ExamDuo
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Formation, Types & Operations
Medium
Matrix multiplication A² = A
A² = A.A =
2
-2
-4
-1
3
4
1
-2
-3
2
-2
-4
-1
3
4
1
-2
-3
=
4 + 2 - 2
-4 -6 + 8
-8 - 8 + 12
-2 -3 +4
2 + 9 - 8
4 + 12 - 12
2 + 2 - 3
-2 -6 + 6
-4 -8 + 9
=
2
-2
-4
-1
3
4
1
-2
-3
= A
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SELECT ONE OPTION
A
null matrix
B
unit matrix
C
A
D
None of the above
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