Mathematics · Matrices
If A = 1 2 -1 1 , then the value of A 2 - 2A + 2I (where I is the identity matrix) is equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1I
- 2O (Zero matrix)
- 3-I✓
- 42I
Correct answer
-I
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