2 \frac{\cos 67^{\circ}}{\sin 23^{\circ}}-\frac{\tan 40^{\circ}}{\cot – InterviewSolution

1.	2 \frac{\cos 67^{\circ}}{\sin 23^{\circ}}-\frac{\tan 40^{\circ}}{\cot 50^{\circ}}+\cos 0
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