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What is (\tan(\frac{\pi}{2}+x)) equal to?(\tan(\frac{\pi}{2}+x)) किसके बराबर है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-\cot x)(-\cot x)
At (\frac{\pi}{2}+x), (\tan) changes to (\cot) with a negative sign. Hence (\tan(\frac{\pi}{2}+x)=-\cot x).(\frac{\pi}{2}+x) पर (\tan) बदलकर (\cot) होता है और चिन्ह ऋणात्मक होता है। इसलिए (\tan(\frac{\pi}{2}+x)=-\cot x)।
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