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If (f(x)=x^2+1) and (g(x)=x^2-1), what is ((f-g)(5))?यदि (f(x)=x^2+1) और (g(x)=x^2-1) हैं, तो ((f-g)(5)) क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (2)(2)
((f-g)(x)=(x^2+1)-(x^2-1)=2), so at any (x) the value is (2). Simplifying first reduces calculation.((f-g)(x)=(x^2+1)-(x^2-1)=2), इसलिए किसी भी (x) पर मान (2) है। पहले सरल करने से गणना कम होती है।
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