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Write the value of \(cos(\frac{tan^{-1}x+cot^{-1}x}{3})\), when x = \(-\frac{1}{\sqrt{3}}\). |
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Answer» Given \(cos(\frac{tan^{-1}x+cot^{-1}x}{3})\) when x = \(-\frac{1}{\sqrt{3}}\) We know that tan-1 x + cot-1 x = π/2 = cos (π/6) = √3/2 |
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