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If (f(x)=x^2+2) and (g(x)=2x), what are the solutions of ((f-g)(x)=0)?यदि (f(x)=x^2+2) और (g(x)=2x) हैं, तो ((f-g)(x)=0) के हल क्या हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: No real solutionकोई वास्तविक हल नहीं
((f-g)(x)=x^2-2x+2=(x-1)^2+1), which is never (0). Completing the square quickly shows real solutions.((f-g)(x)=x^2-2x+2=(x-1)^2+1), जो कभी (0) नहीं होता। वर्ग पूर्ण करने से वास्तविक हल जल्दी दिखता है।
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