JEE Math Practice Question
$$\int\limits_0^\pi {\left[ {\cot x} \right]dx,} $$ where $$\left[ . \right]$$ denotes the greatest integer function, is equal to:
- A.$$1$$
- B.$$-1$$
- C.$$ - {\pi \over 2}$$
- D.$$ {\pi \over 2}$$
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