Let (sn) [infinity] n=1 be an enumeration of positive rational numbers in (0, 2]. This means that 0 < sn ≤ 1 is rational for every n and every positive rational number in (0, 2] appears in the sequence exactly once. (a) (4 pts) What is the set of all subsequential limits of (sn)? Justify your answer. (b) (4 pts) Find lim sup sn and lim inf sn. (c) (4 pts) What is the exact interval (end points must be discussed) of convergence of the power series X[infinity] n=1 snx n ? Justify your answer. (d) (4 pts) Does the power series X[infinity] n=1 snx n n2 represent a continuous function on [−1, 1]? Justify your answer.

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation: