Question

find the sum to n terms of each of the series in exercise 1 to 7. 7. 1^2+(1^2+2^2)+(1^2+2^2+3^2)+...


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Answer 1

Answer:

- 9

EXERCISE 9.4

no

Find the sum to n terms of each of the series in Exercises 1 to 7.

1. 1x 2 + 2 x 3 + 3 x 4 + 4 x 5 +... 2. 1x 2 x 3 + 2 x 3 x 4 + 3x4

3. 3 x 12 + 5 x 22 + 7 x 32 + ...

1

4.

1 1

2x3+2x4+...

5.

7.

52 + 62 +72 + ... + 202

12 + (12 + 22) + (12 + 22 + 32) + ...

x 11 + 9 x 14+..​

Answer 2

Answer:

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Step-by-step explanation:

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