MCQOPTIONS
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| 1. |
If \[{{\tan }^{-1}}x+2{{\cot }^{-1}}x=\frac{2\pi }{3},\]then x = [Karnataka CET 1999] |
| A. | \[\sqrt{2}\] |
| B. | 3 |
| C. | \[\sqrt{3}\] |
| D. | \[\frac{\sqrt{3}-1}{\sqrt{3}+1}\] |
| Answer» D. \[\frac{\sqrt{3}-1}{\sqrt{3}+1}\] | |