Question

Complete the following activities. (Any 1)

(3)

1. The sum of the first 45 terms of an A.P. is 3195. Complete the following activity

to find the 23rd term.

Solution: S = 45 = 3195

Let the first term of the A.P. be a and the common difference d.

S =

2

[ 2− ]

∴ 45 =

45

2 [ 2− ]

∴ 3195 =

45

2 [ 2 + 44 ]

∴ 3195 = 45 ×

∴ a + 22d =

∴ a + 22d = 71

​

Answer 1

Answer:

is this Hind

Explanation:

I don't think so