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If (\sin x=0), what is the value of (\cos x) at (x=0)?यदि (\sin x=0), तो (x=0) पर (\cos x) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(1\)\(1\)
At \(x=0\), \(\cos 0=1\). Therefore, the correct option is \(1\). Note that \(\sin x=0\) can also occur at \(x=n\pi\), but the question specifically asks for \(x=0\). Exam tip: Remember that \(\sin 0=0\) and \(\cos 0=1\).जब \(x=0\) हो, तब \(\cos 0=1\) होता है। इसलिए सही विकल्प \(1\) है। ध्यान दें कि \(\sin x=0\) के लिए \(x=n\pi\) भी हो सकता है, पर प्रश्न में विशेष रूप से \(x=0\) दिया गया है। परीक्षा टिप: \(0\) पर \(\sin 0=0\) और \(\cos 0=1\) याद रखें।
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