A) \[60{}^\circ \,\,and\,\,120{}^\circ \]
B) \[50{}^\circ \,\,and\,\,130{}^\circ \]
C) \[70{}^\circ \,\,and\,\,120{}^\circ \]
D) \[20{}^\circ \,\,and\,\,120{}^\circ \]
E) None of these
Correct Answer: A
Solution :
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