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| 1. |
\operatorname { sin } 600 ^ { \circ } \operatorname { tan } ( - 690 ^ { \circ } ) + \operatorname { sec } 840 ^ { \circ } \operatorname { cot } ( - 945 ^ { \circ } ) = \frac { 3 } { 2 } |
| Answer» | |