Math, asked by nikhath11, 1 year ago

if a=_4 , an=29 , sn=150,d=?​

Answers

Answered by Thanujmullaguri
0

i hope this helps you solve the problem plz mark as brainliest

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Answered by NeelamG
0

a= - 4, an=29, Sn =150

Sn = n/2[a+an] =150

n/2[ - 4+29] = 150

25n = 300

n = 12

as we know that

an = a+(n-1)d =29

-4 +(12-1)d = 29

11d = 33

d = 3

i hope it will help u


NeelamG: number of terms are in whole number
NeelamG: so, there must be a = - 4
NeelamG: mark as brainlist if it helps u
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