Math, asked by theerthatheetha, 7 hours ago

the sun of three term of AP is 36 and third term is 14 ,then the comman difference is​

Answers

Answered by tanya280606
1

Answer:

Your answer is

Step-by-step explanation:

Given:

S3=36

a3=14

Solution

Sn=n/2(a+l) [l is the last term]

S3=3/2(a+14)

36x2=3a+42

72-42=3a

30=3a

a=10

an=a+(n-1)d

a3=a+(3-1)d

a3=a+2d

14=10+2d

14-10=2d

4=2d

d=2

HOPE IT IS HELPFUL..

Similar questions