Examlex
Determine whether matrix B is the inverse of matrix A by finding the product AB.
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Q18: <span class="ql-formula" data-value="\begin{array} { l } x
Q20: Focus at (3, 6); vertices at
Q27: <span class="ql-formula" data-value="4 x ^ { 2
Q38: <span class="ql-formula" data-value="x + y = 2"><span
Q46: The vertex has coordinates (9, -3),
Q145: <span class="ql-formula" data-value="y < - \frac {
Q145: 4, -12, 36, -108, 324, .
Q183: <span class="ql-formula" data-value="\begin{array} { l } x
Q185: <span class="ql-formula" data-value="15 x ^ { 4
Q245: <span class="ql-formula" data-value="\frac { x ^ {