A) \[60{}^\circ ,\,\,300{}^\circ \]
B) \[270{}^\circ ,\,\,90{}^\circ \]
C) \[75{}^\circ ,\,\,285{}^\circ \]
D) \[30{}^\circ ,\,\,330{}^\circ \]
E) None of these
Correct Answer: B
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