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What is the correct simplified form of (\cos(\pi+x))?(\cos(\pi+x)) का सही सरलीकृत रूप क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-\cos x)(-\cos x)
The form (\pi+x) is linked to the third quadrant where (\cos x) is negative. Hence (\cos(\pi+x)=-\cos x).(\pi+x) तीसरे चतुर्थांश से जुड़ा रूप है जहाँ (\cos x) ऋणात्मक होता है। इसलिए (\cos(\pi+x)=-\cos x)।
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