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tmua.me Extreme Set C Paper 1 · Q6

Paper 1Algebra

For real xx with x≠0x\ne0 and x≠−1x\ne-1, what is the least possible value of

x2+(x+1)2+12x2+12(x+1)2 ?x^2+(x+1)^2+\frac1{2x^2}+\frac1{2(x+1)^2}\,?
A92\dfrac92
B222\sqrt2
C44
D55
E458\dfrac{45}{8}
F66

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