Problem

Problem

The solution of 2x+2∣x∣≥222^x + 2^{|x|} \ge 2\sqrt{2} is a. (−∞,log⁡2(2+1))(-\infty, \log_2(\sqrt{2} + 1)) b. (0,∞)(0, \infty) c. (12,log⁡2(2−1))(\frac{1}{2}, \log_2(\sqrt{2} - 1)) d. (−∞,log⁡2(2−1)]∪[12,∞)(-\infty, \log_2(\sqrt{2} - 1)] \cup [\frac{1}{2}, \infty)

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