Can someone just explain to me how to find if a series is convergent/divergent, how to find sum, how to write the ar^n and how to find them from he original series given. For example, ∑n=1...

Can someone just explain to me how to find if a series is convergent/divergent, how to find sum, how to write the ar^n and how to find them from he original series given. For example, ∑n=1...

it says thats the answer i dont know how that is possible because cos24 = .9135... if thats the case what is cos28?

Background information: nsin(1/n) diverges using the Test for Divergence. I was playing around on my calculator and I noticed that no matter what term number you use the output...

a1=4, an=1024, r = -2

1. In a geometric series, t1=3 and S3=21. Determine the common ratio and an expression for the sum of the first k terms.

5 + 15 + 45 + ... + 98,415

I cannot figure out where to begin with these choices: 1) 730 2) 745 30 820 4) 910

P - the sun is shining q - it is raining r - the cat is inside a - the sun is shining and the cat is inside. b - if it is raining then the sun is not shining c - if it...

After each washing of a pair of jeans, 1.8% of the dye washes out. How much dye remains after 12 washings?

The first and the last terms of a geometric series are 2 and 2048 respectively. The sum of the series is 2730. Find the number of terms and the common ratio.

Let f(x) = 4x/(4x + 2) Find the sum of f(1/2014) + f(2/2014) + f(3/2014) + ... + f(2013/2014)

Find a formula Sn, the sum of the first n terms of the series: 12+6+3+1.5

Find the sum of the following series root 7+7+7 root 7+49...to 12 terms

Don't know how to find the first term please explain.

1. Find the sum: (1/√1 + √2) + (1/√2 + √3) + (1/√3 + √4) + ... + (1/√99 + √100)

integral of x^8ln(1+x)dx f(x) = C + sum from n=1 to infinity of... What is the radius of convergence R? Please show how you arrive at the...

A large school board established a phone tree to contact all of its employees in case of emergencies or inclement weather. Each of the three superintendents calls three employees who each in turn...

Suppose that after a tax rebate an individual spends $210. The money is then respent over and over again, each time at a rate of 70%. Determine the total amount spent. Assume that the money can be...

3+6+12+...+768

in 1992, the number of units sold is 360. In 1993 it was noticed that the annual sales formed a geometric sequence with first term 160, the 2nd and 3rd terms being 240 and 360 respectively. (a)...

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