If A= ( rr & 1 -1 & - ), then A^ -1 does not exist if = - Vidyadip

MCQ

If $A=\left(\begin{array}{rr}\lambda & 1 \\ -1 & -\lambda\end{array}\right)$, then $A^{-1}$ does not exist if $\lambda=$

A
0
✓
± 1
C
2
D
3

✓

Answer

Correct option: B.

± 1

± 1

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