Question

2.
The sum of first n positive integers is given by
(n-1) 9(2+1)
(n+1)
(d) none of these
The first term of an AP is-7 and common difference 5. Find its general term.
How many terms are there in A.P?
In an AP, the sum of first n terms is such an find its 2-t term.
Show that the progression 4.7.104.13.17..is an AP.
Find the sum to n term of the AP in 5.2.-1.-4.-7..........
8.
Find the sum of first 24 terms of the list of no, whose nth term is given by [3]
2. = 3+21
9.
If (p+1) term of an A.P is twice the (q + 1)"term
show that (3p+1) term is 14)
twice the (p+
1) term.
10. The sum of four numbers in AP is 50 and the greatest number four times the least. [4]
Find the numbers
11. Find the sum of all integers between 84 and 719 which are multiples of 5. [4]
1. Imterm of an AP is
and the
term is
show that the sum of nuternis is 14​

Answer 1

Answer:

this question has class 10 I am right