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What is the value of \(\cos^{-1}\left(\cos\frac{\pi}{4}\right)\)?\(\cos^{-1}\left(\cos\frac{\pi}{4}\right)\) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(\frac{\pi}{4}\)\(\frac{\pi}{4}\)
Since \(\frac{\pi}{4}\in[0,\pi]\), \(\cos^{-1}\left(\cos\frac{\pi}{4}\right)=\frac{\pi}{4}\). If the angle lies in the principal range, it remains unchanged.\(\frac{\pi}{4}\in[0,\pi]\) है इसलिए \(\cos^{-1}\left(\cos\frac{\pi}{4}\right)=\frac{\pi}{4}\)। प्रधान सीमा में कोण हो तो वही उत्तर आता है।
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