Calculate the difference between the sum of the
first 20 terms of the arithmetic sequences
6, 10, 14 and 15, 19, 23
Answers
Answered by
2
Answer:
6.10.14.18.22 and 15.19.23.27.
Answered by
3
Answer:
180
Step-by-step explanation:
Sn = n/2 (2a+(n-1)d)
For 1st AP, a=6, d=4
For 2nd one, a=15, d=4
n=20
Calculate the sum for each AP using the above mentioned formula and subtract
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