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If \(\theta=\cos^{-1}\left(\frac{4}{5}\right)\), what is the value of \(\cos\theta\)?यदि \(\theta=\cos^{-1}\left(\frac{4}{5}\right)\), तो \(\cos\theta\) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(\frac{4}{5}\)\(\frac{4}{5}\)
The expression \(\cos^{-1}\left(\frac{4}{5}\right)\) is the angle whose cosine is \(\frac{4}{5}\). So \(\cos\theta=\frac{4}{5}\).\(\cos^{-1}\left(\frac{4}{5}\right)\) वह कोण है जिसका \(\cos\) मान \(\frac{4}{5}\) हो। इसलिए \(\cos\theta=\frac{4}{5}\)।
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