数学试题讲解

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设

a = \sin 7

, 则

a^{2} < 2^{a} < \log_{2} | a |

\log_{2} | a | < 2^{a} < a^{2}

a^{2} < \log_{2} | a | < 2^{a}

\log_{2} | a | < a^{2} < 2^{a}