心脏跳动时,血压在增加或减小.血压的最大值、最小值分别称为收缩压和舒张压,血压计上的读数就是收缩压和舒张压,读数120/80
为标准值.设某人的血压满足函数式
,其中
为血压(单位:
),t为时间(单位:min),试回答下列问题:
(1)求函数
的周期;
(2)此人每分钟心跳的次数;
(3)画出函数
的草图;
(4)求出此人的血压在血压计上的读数,并与标准值比较.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099593c57e243872d75d5e52741c77d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b30037dcca59fa06cd71eaee48f5c617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded95209f95cb252b0ef6986faf75977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099593c57e243872d75d5e52741c77d8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded95209f95cb252b0ef6986faf75977.png)
(2)此人每分钟心跳的次数;
(3)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded95209f95cb252b0ef6986faf75977.png)
(4)求出此人的血压在血压计上的读数,并与标准值比较.
20-21高一·江苏·课后作业 查看更多[4]
(已下线)7.4 三角函数应用(已下线)第五章 三角函数-2021-2022学年高一数学新教材单元过关测评卷(人教A版2019必修第一册)【学科网名师堂】苏教版(2019)必修第一册课本习题 习题7.4福建省莆田市第十五中学2021-2022学年高一上学期期末数学试题
更新时间:2021-10-30 23:10:31
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【知识点】 三角函数在生活中的应用解读
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(2)当
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