Which term of the series 4+9+14+....is 254 ?
Answers
Answered by
1
hey friend....
in ur question...
a=4 , d=5
An=254.
An=a+(n-1)d
254=4+(n-1)5
250\5=(n-1)
50=n-1
n=> 51...
hope it will help u
in ur question...
a=4 , d=5
An=254.
An=a+(n-1)d
254=4+(n-1)5
250\5=(n-1)
50=n-1
n=> 51...
hope it will help u
Answered by
0
sn= n/2 (2a+n_1)d
sn=254
a=4
d=9_4=5
sn=n/2 (2×4+n_1)5
254=n/2 (8+5n_5)
254=n/2 (3+5n)
254×2/n =(3+5n)
508/n=3+5n
508/n_5n=3
508_5n^2/n=3
508_5n^2=3n
508=3n+5n^2
5n^2+3n=508
if you factarised these you will get answer
I will hope you get answer⚘
sn=254
a=4
d=9_4=5
sn=n/2 (2×4+n_1)5
254=n/2 (8+5n_5)
254=n/2 (3+5n)
254×2/n =(3+5n)
508/n=3+5n
508/n_5n=3
508_5n^2/n=3
508_5n^2=3n
508=3n+5n^2
5n^2+3n=508
if you factarised these you will get answer
I will hope you get answer⚘
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