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If \(y=\cos^{-1}x\), which relation is correct?यदि \(y=\cos^{-1}x\) है, तो कौन-सा संबंध सही है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(\cos y=x\)\(\cos y=x\)
By definition of inverse cosine, if \(y=\cos^{-1}x\), then \(y\) is the angle whose cosine is \(x\). Hence the correct relation is \(\cos y=x\).inverse cosine की परिभाषा के अनुसार, यदि \(y=\cos^{-1}x\) है, तो \(y\) वह कोण है जिसका cosine \(x\) होता है। इसलिए सही संबंध \(\cos y=x\) है।
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