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Q21: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q40: <span class="ql-formula" data-value="\left\{ \begin{array} { r }
Q42: <span class="ql-formula" data-value="y = \frac { 1
Q92: <span class="ql-formula" data-value="x ^ { 2 }
Q140: <span class="ql-formula" data-value="\frac { x ^ {
Q224: Through <span class="ql-formula" data-value="( -
Q240: Subtract <span class="ql-formula" data-value="( 3
Q241: <span class="ql-formula" data-value="x + 2 y >
Q278: <span class="ql-formula" data-value="y = - \frac {
Q303: If <span class="ql-formula" data-value="f (