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What is the value of (\cos 60^\circ)?(\cos 60^\circ) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(\frac{1}{2}\)\(\frac{1}{2}\)
From the standard trigonometric values, \(\cos 60^\circ=\frac{1}{2}\), so option B is correct. \(\frac{\sqrt{3}}{2}\) is the value of \(\cos 30^\circ\), not \(\cos 60^\circ\). Exam tip: Memorise the standard values for \(30^\circ\), \(45^\circ\), and \(60^\circ\).मानक त्रिकोणमितीय मानों के अनुसार \(\cos 60^\circ=\frac{1}{2}\) होता है, इसलिए विकल्प B सही है। \(\frac{\sqrt{3}}{2}\), \(\cos 30^\circ\) का मान है, \(\cos 60^\circ\) का नहीं। परीक्षा टिप: \(30^\circ\), \(45^\circ\) और \(60^\circ\) के मानों की सारणी याद रखें।
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