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Given a,b,c and d four non-zero positive real numbers such that a/b = b/c = c/d = d/a. The largest possible value of (ab - 3*bc + ca)/(a^2 -b^2 + c^2) isA) -1B) 2C) 3D) None of these |
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Answer» Given a,b,c and d four non-zero positive real numbers such that a/b = b/c = c/d = d/a. The largest possible value of (ab - 3*bc + ca)/(a^2 -b^2 + c^2) is A) -1 B) 2 C) 3 D) None of these |
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