真题
1 . 如图,
表示发动机的连杆,
表示它的曲柄.当A在圆上做圆周运动时,P在x轴上做直线运动,求P点的横坐标.为什么当
是直角时,
是最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19768d8c55deb4973820aeab7a224e6a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/13428f2d-8181-4704-a6f4-63803b606507.png?resizew=247)
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真题
解题方法
2 . 计算下列各题:
(1)
.
(2)
.
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff5f88fc34a62cb543dfa86b01d93f8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/938fae2bcec883a288a077ea3cfe2676.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3756e4b6fa704f5dca651551e41817a8.png)
您最近一年使用:0次