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$Consider this matrix: [[7,9],[1,1]] Find the inverse of the matrix. Give exact values. Non-integers can be given as decimals or as simplified fractions. ◻ ◻$

Consider this matrix: $\newline$ $\left[\begin{array}{ll} 7 & 9 \\ 1 & 1 \end{array}\right]$ $\newline$ Find the inverse of the matrix. $\newline$ Give exact values. Non-integers can be given as decimals or as simplified fractions. $\newline$ $\square$ $\newline$ $\square$

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Math Problems

Algebra 1

Simplify radical expressions with variables

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Q. Consider this matrix:

\newline

\left[\begin{array}{ll} 7 & 9 \\ 1 & 1 \end{array}\right]

\newline

Find the inverse of the matrix.

\newline

Give exact values. Non-integers can be given as decimals or as simplified fractions.

\newline

\square

\newline

\square

Calculate Determinant: Calculate the determinant of the matrix. $\newline$ Determinant = $(7 \times 1) - (9 \times 1) = 7 - 9 = -2$
Find Matrix of Minors: Find the matrix of minors. $\newline$ For \left[\begin{array}{cc}7 & 9\1 & 1\end{array}\right], the matrix of minors is \left[\begin{array}{cc}1 & 1\9 & 7\end{array}\right]