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Q21: <span class="ql-formula" data-value="\ln \sqrt { x +
Q48: <span class="ql-formula" data-value="\cos \alpha = - \frac
Q120: <span class="ql-formula" data-value="f ( \theta ) =
Q127: <span class="ql-formula" data-value="21 ^ { \circ }
Q220: <span class="ql-formula" data-value="y = - 4 \cos
Q248: <span class="ql-formula" data-value="\frac { \tan 40 ^
Q309: <span class="ql-formula" data-value="\frac { 2 \pi }
Q344: <span class="ql-formula" data-value="\sin 330 ^ { \circ
Q345: <span class="ql-formula" data-value="y = \sin 3 x
Q352: <span class="ql-formula" data-value="y = 3 \sec \left(