find the value of x for a.p and a.p series is given
1+6+11+16....+x=148
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given,
a=1
last term (l) = x
sum of terms till l = 148
we know that
Sn = (n/2)(2a+(n-1)d)
148 = (n/2)(2+5n-5)
296 = n(5n-3)
5n×n-3n-296=0
on solving this we get,
n= -37/5 or 8
since number of terms can not be negative
n=8
so, x is the 8th term
then,
x= 1 + (8-1)5
x= 3
mark me the brainliest
a=1
last term (l) = x
sum of terms till l = 148
we know that
Sn = (n/2)(2a+(n-1)d)
148 = (n/2)(2+5n-5)
296 = n(5n-3)
5n×n-3n-296=0
on solving this we get,
n= -37/5 or 8
since number of terms can not be negative
n=8
so, x is the 8th term
then,
x= 1 + (8-1)5
x= 3
mark me the brainliest
kunaljj:
so my answer is the brainliest among the two
wtf you answer it wrong andd show your attitude
go flirt with the other kunal in your answer
(in the comments)
dude can you please tag me the brainliest
now what happen you came to me
dude i am not flirting with you ok go and see your face in mirror
what understand you yourself
blah blah blah blah blah blah blah. i dont care about faces the purpose of brainly is to answer the question in a correct manner so stop annoying me and go check your answer cutie because that shows your ugliness and stop bothering me and your previous comment didn't make sense
and faizalkhan please decide the brainliest
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