Find the sum of the first 30 terms of the sequence below. an=4n+1

 The sum of first 30 terms of the given sequence is 1890.

Step-by-step explanation:  We are given to find the sum of first 30 terms of the following sequence :

The first few terms of the above sequence are

So, the given sequence is an arithmetic one with first term 5 and common difference

d = 9 - 5 = 13 - 9 = 17 - 13 =  .  .  .  = 4.

Therefore, the sum of first 30 terms will be

Thus, the sum of first 30 terms of the given sequence is 1890.

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half