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What is the principal value of \(\cos^{-1}\left(\cos\left(-\frac{\pi}{3}\right)\right)\)?\(\cos^{-1}\left(\cos\left(-\frac{\pi}{3}\right)\right)\) का मुख्य मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(\frac{\pi}{3}\)\(\frac{\pi}{3}\)
\(\cos\left(-\frac{\pi}{3}\right)=\frac{1}{2}\) and \(\cos^{-1}\left(\frac{1}{2}\right)=\frac{\pi}{3}\). The answer of \(\cos^{-1}x\) is not negative.\(\cos\left(-\frac{\pi}{3}\right)=\frac{1}{2}\) और \(\cos^{-1}\left(\frac{1}{2}\right)=\frac{\pi}{3})। (\cos^{-1}x\) में उत्तर ऋणात्मक नहीं होता।
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