\[\tan A+\cot (180{}^\circ +A)+\cot (90{}^\circ +A)+\cot (360{}^\circ -A)\] [MP PET 1992]

\[\tan A+\cot (180{}^\circ +A)+\cot (90{}^\circ +A)+\cot (360{}^\circ

1.	\[\tan A+\cot (180{}^\circ +A)+\cot (90{}^\circ +A)+\cot (360{}^\circ -A)\] [MP PET 1992]
A.	0
B.	\[2\tan A\]
C.	\[2\cot A\]
D.	\[2(\tan A-\cot A)\]
Answer» B. \[2\tan A\]

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\[\tan A+\cot (180{}^\circ +A)+\cot (90{}^\circ +A)+\cot (360{}^\circ -A)\] [MP PET 1992]

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