Question

The sum of 4^th & 8^th term of an Ap is 24 and sum of 6^th and 10^th term is 44 find Ap​

Answer 1

Step-by-step explanation:

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Here,

a

4

=a+3d

a

8

=a+7d

Therefore,

a+3d+a+7d=24

2a+10d=24

a+5d=12 …… (1)

Again,

a

6

=a+5d

a

10

=a+9d

Therefore,

a+5d+a+9d=44

2a+14d=44

a+7d=22 ……. (2)

Solving equations (1) and (2), we get

d=5 and a=−13

Therefore,

a

1

=a=−13

a

2

=a+d=−13+5=−8

a

3

=a+2d=−13+10=−3