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What is the principal value of (\tan^{-1}x+\cot^{-1}x) when (x>0)?(\tan^{-1}x+\cot^{-1}x) का मुख्य मान क्या है, जब (x>0)?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\frac{\pi}{2})(\frac{\pi}{2})
For (x>0), (\tan^{-1}x+\cot^{-1}x=\frac{\pi}{2}). Always check the range convention of (\cot^{-1}x).(x>0) के लिए (\tan^{-1}x+\cot^{-1}x=\frac{\pi}{2}) होता है। (\cot^{-1}x) की range convention जरूर देखें।
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