Question

What is the sum of the arithmetic series 16∑t-1 (6t-4)

Answer 1

Answer:

Sum of an arithmetic sequence is given by the formula:

Sn = (a1 + an)*(n/2)

First term is 6(1) - 4 = 2

16th term is 6(16) - 4 = 92

(2+92)*(16/2) = 752

2. Use the same formula from above. (assuming the first term is when n = 1)

a1 = 2(1) - 3 = -1

a10 = 2(10) - 3 = 17

(-1+17)*(10/2) = 80

Step-by-step explanation: