MCQ
જો $A = \left[ {\begin{array}{*{20}{c}}{ - 1}&0&0\\0&{ - 1}&0\\0&0&{ - 1}\end{array}} \right]$, તો ${A^2}$ એ . . .
- Aશૂન્ય શ્રેણિક
- ✓એકમ શ્રેણિક
- C$A$
- D$2A$
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