共50条信息
\((\sqrt{7}-1)^{0}-(-\dfrac{1}{2})^{-2}+\sqrt{3}\tan 30^{\circ}\);
\((1)\)解方程组 \((2)\)计算:\(\sqrt{8}-{{(\sqrt{3}-2)}^{0}}-{{(\dfrac{1}{2})}^{-1}}\)
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