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\left. \begin{array} { l l } { 210 ^ { \circ } \text { and } 300 ^ { \circ } } & { \text { (B) } 24 } \\ { 240 ^ { \circ } \text { and } 300 ^ { \circ } } & { ( D ) 21 } \end{array} \right. |
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Answer» sin theta is negative in 3rd and 4th quadrantthen angle is (180+30)=210° and (360-30)=330° |
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