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What is the principal value of (\csc^{-1}(-2))?(\csc^{-1}(-2)) का मुख्य मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-\frac{\pi}{6})(-\frac{\pi}{6})
From (\csc y=-2), (\sin y=-\frac{1}{2}), so the principal value is (y=-\frac{\pi}{6}). Remember the range of (\csc^{-1}).(\csc y=-2) से (\sin y=-\frac{1}{2}), इसलिए मुख्य मान (y=-\frac{\pi}{6}) है। (\csc^{-1}) का परिसर याद रखें।
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