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What is \(\sin(2\pi+x)\) equal to?\(\sin(2\pi+x)\) किसके बराबर है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(\sin x\)\(\sin x\)
The sine function has period \(2\pi\). Hence, adding \(2\pi\) to any angle \(x\) does not change its sine: \(\sin(2\pi+x)=\sin x\). The value \(-\sin x\) occurs on adding \(\pi\), since \(\sin(\pi+x)=-\sin x\). Exam tip: remember \(\sin(x+2n\pi)=\sin x\).साइन फलन का आवर्त \(2\pi\) होता है। इसलिए किसी भी कोण \(x\) में \(2\pi\) जोड़ने पर उसका साइन नहीं बदलता: \(\sin(2\pi+x)=\sin x\)। \(-\sin x\) तब प्राप्त होता है जब कोण में \(\pi\) जोड़ा जाता है, क्योंकि \(\sin(\pi+x)=-\sin x\)। परीक्षा टिप: \(\sin(x+2n\pi)=\sin x\) पहचान याद रखें।
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