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Which inequality has no real solution?किस असमानता का कोई वास्तविक हल नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (x^2+4\leq 0)(x^2+4\leq 0)
(x^2+4) is always at least (4), so (x^2+4\leq 0) is impossible. Use the minimum value to judge solutions.(x^2+4) हमेशा कम से कम (4) होता है इसलिए (x^2+4\leq 0) असंभव है। न्यूनतम मान से हल का अनुमान लगाएं।
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