The solution set of the inequality is _.

MATHEMATICS · Single correct · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

The solution set of the inequality log⁡1/3(x2+x+1)+1>0\log_{1/3}(x^2+x+1)+1>0 is _____. (a) (−∞,−2)∪(1,∞)(-\infty,-2)\cup(1,\infty) (b) [−1,2][-1,2] (c) (−2,1)(-2,1) (d) R\mathbb{R}

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