If for the matrix A , A^3 = I, then A^ - 1 = - Vidyadip

MCQ

If for the matrix $ A$ , ${A^3} = I$, then ${A^{ - 1}} = $

✓
${A^2}$
B
${A^3}$
C
$A$
D
None of these

✓

Answer

Correct option: A.

${A^2}$

a
(a)${A^{ - 1}} = {A^2}$, because ${A^3} = I$.

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