Question

if the sum of first 20 terms of arithmetic sequence is 1300 common difference 6.what is the algebraic from of the sequence ​

Answer 1

Answer:

Series: 8, 14, 20, 26, 32...

Step-by-step explanation:

Sum of 20 terms: 1300  

Common difference: 6

Formula: n/2 [2a + (n-1)d]

20/2[2a + (20-1)6] = 1300

10[2a + 19 * 6] = 1300

2a + 114 = 1300/10

2a + 114 = 130

2a = 16

a = 8

Here, the series can be:

8, 8+6 = 14, 14+6 = 20, 20+6 = 26, 26+6 = 32

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