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21. Some Special Series
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Q2 of 60 Page 21

Find the sum of the following series to n terms:

23 + 43 + 63 + 83 + ………

nth term would be 2n

We know ……(1)


Therefore,



Substituting the value from 1



More from this chapter

All 60 →
1

Find the sum of the following series to n terms:

13 + 33 + 53 + 73 + ……..

3

Find the sum of the following series to n terms:

1.2.5 + 2.3.6 + 3.4.7 + ……..

4

Find the sum of the following series to n terms:

1.2.4 + 2.3.7 + 3.4.10 + …………

5

Find the sum of the following series to n terms:

1 + (1 + 2) + (1 + 2 + 3) + (1 + 2 + 3 + 4) + ………

Questions · 60
21. Some Special Series
1 2 3 4 5 6 7 8 8 8 8 9 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10
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