Math, asked by sakshi1620, 1 year ago

if the 7th term of ah.p.is 8 and the 8th term is 7. then find the 28th term

Answers

Answered by madhu100

2

a+6d=8
a+7d=7
- - -
----------
-1d =1
----------
d=-1 , a=0

a+27d= -27

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