Question

Is -150 a term of the A.P. 17, 12, 7, 2, ......?
In an A.P., the 24th term is twice the 10th term. Prove that the 36th term is twice the 16th term.
Determine the A.P. whose fourth term is 18 and the difference of the ninth term from the fifteenth term
is 30.
Find a30 - 220 for the AP -9,-14, -19, -24, ..
The 8th term of an arithmetic progression is zero. Prove that its 38th term is triple of its 18th term.
6.
. 5n
In an AP, the sum of first n terms is
3n
. Find its 20th term.
indita 20th term​

Answer 1

Answer:

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