Mathematics · Matrices and Determinants
If matrix A = [1 2 00 3 11 0 1], then A3 - 5A2 + 7A is equal to: (where I is an identity matrix of order 3)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A
- 2A + 5I
- 33I
- 45I✓
Correct answer
5I
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