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IB MAI HL Geometry & Trigonometry Topic 3.4 Trigonometric Functions (id: 89cfcea

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admin 发表于 2024-2-14 20:51:27 | 显示全部楼层 |阅读模式
本题目来源于试卷: IB MAI HL Geometry & Trigonometry Topic 3.4 Trigonometric Functions,类别为 IB数学

[填空题]
The Chicago Wheel, the world's f aq nfth+uwn3;a(q m(8irk zv m0:odc6*x b.nx yrm(mbz67z2(slst Ferris wheel, was designed and built in 1893 by an American civil engineer, George W :xzynlrm7c.6 (2x v0bds (zbm 6mzok*. G. Ferris Jr.
The height, in metres, above the ground of a passenger on the Chicago Wheel after
t minutes can be modelled by the function
h(t)=38cos($\frac{π}{10}​(t−10))+42$.
1.Find the maximum height reached by a passenger on the Chicago Wheel.$h_{max}$ =   
2.Find the height above the ground of a passenger 12 minutes after the ride has started. h ≈   
3.Find the time, in minutes, it takes for the Chicago Wheel to complete one rotationrotation. t =    min
4.Given that passengers only complete one rotation on the Chicago Wheel, calculate how long they are more than 6565 metres above the ground. t ≈    min




参考答案:
空格1: 80±2%空格2: 72.7±2%空格3: 20±2%空格4: 5.86±2%


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