共50条信息
计算:\(4\sin 30^{\circ}-{\left(π-3\right)}^{0}+\left| \sqrt{3}-2\right|+{\left( \dfrac{1}{2}\right)}^{-2} \)
计算:\(\left| \sqrt{2}-1 \right|+2\sin 45{}^\circ -\sqrt{8}+{{\tan }^{2}}60{}^\circ \).
已知\(∠A\)为锐角,且\(\sin A=\dfrac{\sqrt{2}}{2}\),那么\(∠A\)等于
计算:\(2\sin 30{}^\circ -\tan 60{}^\circ +\cos 60{}^\circ -\tan 45{}^\circ \).
将直线\(y=x\)的图象沿\(y\)轴向上平移\(2\)个单位长度后,所得直线的函数表达式为 ____________,这两条直线间的距离为____________.
进入组卷