find the sum of terms in a.p a+b,a-b,a-3b, to 22 terms
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Answered by
6
from given condition
a+b+a-b+a-3b=22
solve this u will get ur ans
a+b+a-b+a-3b=22
solve this u will get ur ans
Answered by
26
a=a+b d=a-b-a-b = -2b n=22
S22 =22/2[2(a+b) +(22-1) (-2b)]
11[2a+2b-42b]
22a+22b-462b
22a-440b
S22 =22/2[2(a+b) +(22-1) (-2b)]
11[2a+2b-42b]
22a+22b-462b
22a-440b
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