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Let ๐ be a $$3 \times 3$$ invertible matrix with real entries and let I denote the $$3 \times 3$$ identity matrix. If $$๐^{โ1} = adj (adj ๐)$$, then which of the following statements is/are ALWAYS TRUE?
M = I
bet M = 1
$$M^{2} = I$$
$$(adj ๐)^{2} = I$$
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