Examlex
Verify that each equation is an identity.
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Q47: <span class="ql-formula" data-value="\frac { 4 \pi }
Q229: <span class="ql-formula" data-value="13 \pi"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>13</mn><mi>π</mi></mrow><annotation
Q242: Find <span class="ql-formula" data-value="\csc \theta"><span
Q258: If <span class="ql-formula" data-value="\mathbf {
Q358: <span class="ql-formula" data-value="4 \sin 2 x \cos
Q382: <span class="ql-formula" data-value="\left[ 4 \operatorname { cis
Q389: <span class="ql-formula" data-value="\frac { 1 + \tan
Q405: <span class="ql-formula" data-value="\frac { \sin x +
Q473: <span class="ql-formula" data-value="\sin \frac { x }
Q491: <span class="ql-formula" data-value="2 \cos ^ { 2