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Q20: <span class="ql-formula" data-value="\cos \theta < 0 ,
Q169: <span class="ql-formula" data-value="\left( \frac { 2 }
Q184: If <span class="ql-formula" data-value="\tan \theta
Q223: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7697/.jpg" alt=" A)
Q250: <span class="ql-formula" data-value="\sin ( 2 \theta )
Q330: <span class="ql-formula" data-value="7 \cot ^ { 2
Q378: <span class="ql-formula" data-value="\left( \frac { 1 }
Q391: <span class="ql-formula" data-value="\cos 75 ^ { \circ
Q438: <span class="ql-formula" data-value="f ( x ) =
Q502: <span class="ql-formula" data-value="5 ^{\sqrt { 7 }}"><span