find the sum of first 22nd term of an Ap in which d=7 and 22nd term is 149
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Answered by
4
what is the full form of AP
brainlybestuser:
149=a+147
so,a=2
now,
soory i went wrong
sum if 22 terms will be
sn=n/2(2a+(n-1)d)
s22=22/2(2×2+147)
s22=11×151
s22=1661
ok thank u
Answered by
13
a22 =a+(22-1)7
149=a+147
so, a=2
now sum if 22 terms will be,
Sn =n/2 (2a+(n-1)d)
S22=22/2(2×2+(22-1)7)
S22=11×(4+147)
S22=1661
149=a+147
so, a=2
now sum if 22 terms will be,
Sn =n/2 (2a+(n-1)d)
S22=22/2(2×2+(22-1)7)
S22=11×(4+147)
S22=1661
thank you yaar for helping me..
ok
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