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Jack is riding a Ferris wheel,where t is time in seconds.Explain what each of the following represents.
a.h(3),where h(t)= 7 cos(30t)°
b.h(3),where h(t)= 7 sin(30t)°
人气:487 ℃ 时间:2020-08-24 21:28:02
解答
杰克在坐一个摩天轮,t是时间,单位秒.解释下面各个的含义
一个圆参数方程,半径r=7
x=7cos30t
y=7sin30t
3秒时,jack到达顶端
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