Solution set to the inequality is _.

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

Problem

Solution set to the inequality log⁡10(x2−2x−2)≥0\log_{10}(x^2 - 2x - 2) \geq 0 is _____. (a) [−1,1−3][-1, 1 - \sqrt{3}] (b) [1+3,3][1 + \sqrt{3}, \sqrt{3}] (c) [−1,1−3]∪[1+3,3][-1, 1 - \sqrt{3}] \cup [1 + \sqrt{3}, 3] (d) none of these

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