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Math T sem 1 assignment 大家开始做了吗？
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Math T sem 1 assignment 大家开始做了吗？ |
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发表于 3-7-2014 02:13 PM
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楼主 |
发表于 3-7-2014 07:39 PM
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发表于 3-7-2014 10:23 PM
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发表于 7-7-2014 02:47 PM
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我们有了，老师说是Chapter 2 的，chapter 2 上完了就可以开始做assignment了。。 |
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发表于 7-7-2014 08:20 PM
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发表于 7-7-2014 09:33 PM
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joey小雨 发表于 7-7-2014 08:20 PM 
肯定是一样的啦~
还以为会像PA有不同题目.gif)
学姐有啥做assignment的经验可分享 xD
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发表于 30-7-2014 08:53 PM
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发表于 31-7-2014 08:27 PM
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发表于 1-8-2014 10:28 AM
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题目post上来下 |
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发表于 4-8-2014 03:30 PM
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Allmaths 发表于 1-8-2014 10:28 AM
题目post上来下
The drug quinine remains as an important anti-malaria drug after its effectiveness was first documented about four centuries ago. When a person is given a dosage of quinine, the body metabolizes most of the quinine.
1. Suppose a malaria patient is given a treatment of 50mg dose of quinine at the same time every day.
For every 24hours, 75% of quinine in the body is metabolized.
a) if Qn presents the quantity, in mg, of quinine in the body right after the nth dose, determine Qn for n=1,2,3,......,8,
giving your answers correct to four decimal places.
b) Suggest a suitable formula to calculate the amount of quinine in the body right after every dosage.
2. The concentration of quinine in the body is measured in mg of quinine per kg of body weight. for effective treatment, the concentration of quinine in the body must be at least 0.4 mg/kg. Concentration above 2mg/kg would be hazardous to the patient.
a) If a patient is given a dosage of 50mg for every 24hours,
i) determine the quantities of quinine in body right before and after every dose,
ii) determine whether the prescription is effective and safe if his body weight is 35kg.
iii) determine whether the prescription is effective and safe if his body weight is 60kg.
Justify your answer for (ii) and (ii).
b) Based on your weight, estimate the range of dosage for every 24 hours such that the prescription is effective and safe.
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发表于 4-8-2014 03:36 PM
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发表于 4-8-2014 05:33 PM
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小屁孩RD 发表于 4-8-2014 03:36 PM
第一题解出来了～～寻求第二题的方案
第一题是不是用sequence 的方法？
然后就会有convergent graph?
C)的那个right after 想表达什么呢？
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发表于 4-8-2014 10:32 PM
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jpmw0112 发表于 4-8-2014 05:33 PM
第一题是不是用sequence 的方法？
然后就会有convergent graph?
对啊～C的话是要求你算了A的那个，来做一个GENERAL FORMULA，如果没错的话，好象是Qn=200/3(1-a^r)，有的是G.P的Sn formulae
A的答案做出来是第一个62.多，第二个65.多，过后开始就是66.多了
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楼主 |
发表于 5-8-2014 10:24 PM
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发表于 5-8-2014 11:03 PM
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justin96 发表于 5-8-2014 10:24 PM
introduction那些你们做了吗？
写了第一段，
老师是说大概介绍quinine, 然后dosage too high or too low 有什么影响，
还有suitable dosage to use
后面那两个没什么idea下笔 TT
你做了？
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发表于 5-8-2014 11:04 PM
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小屁孩RD 发表于 4-8-2014 10:32 PM
对啊～C的话是要求你算了A的那个，来做一个GENERAL FORMULA，如果没错的话，好象是Qn=200/3(1-a^r)，有的 ...
呀，为什么会有 200/3 ?
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发表于 6-8-2014 04:05 PM
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jpmw0112 发表于 5-8-2014 11:04 PM
呀，为什么会有 200/3 ?
因为PROVE到最后，会得到Qn=(1-r^n) over (1-r)，然后把A=50 R=1/4，下面就等于3/4，然后50除它就等于200/3
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发表于 6-8-2014 04:06 PM
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急求INTRODUCTION和METHODOLOGY啊～～最惨是会做，可以不懂如何写成一段PARAGRAPH== |
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发表于 6-8-2014 05:07 PM
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小屁孩RD 发表于 4-8-2014 10:32 PM
对啊～C的话是要求你算了A的那个，来做一个GENERAL FORMULA，如果没错的话，好象是Qn=200/3(1-a^r)，有的 ...
Question 1 part A 的答案我是算到了.但是还找不到 sequence 的 equation. 请问你的 sequence's equation 是什么?
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