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What is \(\cos(\theta-\pi)\) equal to?\(\cos(\theta-\pi)\) किसके बराबर होता है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: -\(\cos \theta\)-\(\cos \theta\)
\(\cos(\theta-\pi)=-\cos \theta\). A difference of \(\pi\) changes the sign of \(\cos \theta\).\(\cos(\theta-\pi)=-\cos \theta\) होता है। \(\pi\) का अंतर \(\cos \theta\) का चिह्न बदल देता है।
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