Math, asked by Anonymous, 1 year ago

plzz answer this question of AP

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Answered by Dhansu
2
See here it is the ans
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Answered by MayankTamakuwala1296
0
If first and last term of AP is 1 and 11 then,
a = 1 and L = 11

Also given that sum of the terms is 36 = Sₙ

We have to find n

Sₙ = [n(a+L)]/2
36 = [n(1+11)]/2
36 * 2 = 12n
72 = 12n

Therefore, n = 72/12 = 6

So number of terms are 6

Answer:- n = 6


MayankTamakuwala1296: Please mark my answer as brainliest
MayankTamakuwala1296: You are doing partiality.
MayankTamakuwala1296: he had not explained. He had just apply a formula. But see I had fully explained with all details.
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