Math, asked by faizi7, 1 year ago

if the 5th term of an AP is 20 and 15th term is 50.then find the AP and its Nth term

Answers

Answered by Debosmita007
4
The answer is as follows... Hope it helps!!!
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Answered by NishantMishra3
0
t5=20

t15=50

a+4d=20

a+14d=50

on subtracting both

10d=30

d=3

on putting this in equation we have

a+4d=20

a+12=20

a=8

Ap=8,11,14....


tn=8+(n-1)3

=8+3n-3

=5+3n
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