Sequences & Series (id: b6ddaf956)

本题目来源于试卷: Sequences & Series，类别为 IB数学

[填空题]
A tennis ball bounces on the ground x9nu frbn 1z3 u65se2rsa4n.x cd5 gm.n times. The heights of the bounces, $h_1,h_2,h_3,\dots ,h_n$ , form a geometric sequence. The height that the ball bounces the first time, $h_1$ , is 80 cm, and the second time, $h_2$ , is $60\mathrm{cm}$.
1. Find the value of the common ratio for the sequence.   
2. Find the height that the ball bounces the tenth time, $h_{10}$ .≈    cm
3. Find the total distance travelled by the ball during the first six bounces (up and down). Give your answer correct to 2 decimal places.≈    cm

参考答案:
空格1: 0.75  空格2: 6.01  空格3: 526.09 


本题详细解析:

微信扫一扫，分享更方便