Question

consider 5,10,15....what is the difference between first 20 terms and the next 20 terms​

Answer 1

Answer:

What is the difference between the sum of the first 20 terms and the next 20 terms of the arithmetic sequence 6,10,14…?

6 , 10 , 14 , …… is the AP

1st term 6 , common diff=10–6=4

21 st term = 6+(21–1)×4=86

20 th term=86–4=82

40 th term = 6+(40–1)×4=6+39×4=

=156+6=162

sum of 21 st to 40 th term ie 20 terms

=(86+162)20/2=248×10=2480

sum of first 20 terms

=(6+82)×20/2=880

difference =2480–880=1600

Answer 2

Answer:

5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245,250,255,260,265,270,275,280,285,290,295,300

please brilliant answer of me