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Q39: <span class="ql-formula" data-value="\left[ \begin{array} { r r
Q46: <span class="ql-formula" data-value="\left[ \begin{array} { r r
Q120: <span class="ql-formula" data-value="f ( x ) =
Q134: <span class="ql-formula" data-value="\left| \begin{array} { c c
Q164: <span class="ql-formula" data-value="x^{2}+y^{2}>16"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><msup><mi>x</mi><mn>2</mn></msup><mo>+</mo><msup><mi>y</mi><mn>2</mn></msup><mo>></mo><mn>16</mn></mrow><annotation encoding="application/x-tex">x^{2}+y^{2}>16</annotation></semantics></math></span><span
Q165: <span class="ql-formula" data-value="\left[ \begin{array} { r r
Q175: <span class="ql-formula" data-value="x-y<-2"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>x</mi><mo>−</mo><mi>y</mi><mo><</mo><mo>−</mo><mn>2</mn></mrow><annotation encoding="application/x-tex">x-y<-2</annotation></semantics></math></span><span
Q183: <span class="ql-formula" data-value="\frac { 1 } {
Q194: <span class="ql-formula" data-value="6,18,54,162,486"><span class="katex-display"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"
Q232: <span class="ql-formula" data-value="y = \pm \sqrt {