Practicing Success
Practicing Success
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For what value of x will |adj A| =11 if A = \(\begin{bmatrix}x^2 & 4\\4 & x \end{bmatrix}\)? |
-3 3 0 None of tehse |
3 |
|adj A| = \( { |A| }^{ n-1 } \) 11 = \( { |A| }^{ 2-1 } \) 11 = |A| 11 = \( { x }^{ 3 } -16\) 27 = \( { x }^{ 3 } \) x=3 |
