Sample Questions and Discussion About the front and Series Arithmetic

Sample Questions and Discussion About the series Arithmetic - the material that will be given by Basic Mathematical Formulas this time are examples of math problems on arithmetic progression. The discussion this time is a continuation of Material Arithmetic Sequences and Series Complete previously been described. The aim is that you can understand more and more about the material, and can understand how the steps that must be done to resolve the problems of arithmetic progression. Here are some examples of questions that you can learn complete with discussion:

Sample Questions and Discussion About Sequences and Series Arithmetic


Example Problem 1
Calculate the amount of fifteen first parts of series of numbers 6 + 1 + (-4) + ...

Resolution:
Dik: a = 6, b = 1-6 = -5
Dit: [1945902million] S 15

Answer:













Thus, the number five the first of the twelve tribes of the series of numbers is -435


Example Problem 2
Given an arithmetic progression is 10 and the first tribe to tribe 28nya adal ah 91. Determine the number to 28 parts of the series!

Resolution:
Dik: a = 10 [1945902million] U 28 = 91
Dit: [1945902million] S 28
[1945902million]
[1945902million] Answer:









So the total number to 28 parts of the series is 1414


Example Problem 3
known formula for the sum of the n a series of numbers is Sn = [1945902million] n / 2 [ 3n + 1] . Determine the amount of 20 parts first!

Resolution:


Dik: Sn = n / 2 [ 3n + 1]
[1945946million] Dit: S 20 [1945946million]
[1945902million] Answer:









So the number 20 the first term of the series is 610.


Example Problem 4
known series of numbers 2 + 5 + 8 + 11 + ...
Determine the sum formula of the n her!

Resolution:
Dik: a = 2, b = 5-2 = 3
Dit: Sn

Answer:








So the formula amount of the nth term of the series is Sn = n / 2 [1 + 3n]



Sample Problem 5
A conference hall there are 10 seats in the first row and increase by 5 seats on the next line. In the building can accommodate 10 rows of seats. What is the number of seats in these buildings?

Resolution:
Dik: a = 10, b = 5
Dit: [1945902million] S 10

Answer:









So the number of seats in the building is 325 seats.

That was some Sample Questions and Discussion About the front and Series Arithmetic which you can see and learn to be more easy in working on similar if to meet him at a later date. I hope you can understand what is described above with either. Until we meet again on the matter further explanation of the example problems !!!

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