Question

(2)
What is the difference between the sum of the first 20 terms and the
next 20 terms of the arithmetic sequence 6, 10, 14, ...?​

Answer 1

Answer:

Hope this is helpful

Answer 2

Answer:

880,2480

Step-by-step explanation:

AP:6,10,14...

a=6

d=10-6=4

For first 20 terms, n=20

Sn=n/2 × [2a + (n-1)d]

=>S20 = 20/2× (12+76)=880

Similarly on solving, sum of first 40(20+20) terms=3360

Sum of next 20 terms= 3360-880= 2480