共50条信息
计算:\({{(\dfrac{1}{3})}^{-1}}+{{(\dfrac{1}{3}+\sqrt{2})}^{0}}-\sqrt{27}-2\cos 30{}^\circ \).
计算:\(\left| -3 \right|-2\sin 60{}^\circ {+}{{\left( -2 \right)}^{3}}{+}\sqrt{12}\).
计算:\(\sqrt{8}-2\cos 45{}^\circ +{{(3-{ }\!\!\pi\!\!{ })}^{0}}+|1-\sqrt{2}|\).
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