Math, asked by Amnaaaaa, 3 months ago

if the sum of 1st and 7th terms of an AP is 36,find its middle term?

Answers

Answered by Snapskg730

6

Answer:

middle term = a4

a1 + a7 = 36

a + a + 6d = 36

2a + 6d = 36

2(a+3d) = 36

a + 3d = 18 — 1

a4 = a + 3d — 2

compare 1 and 2

a4 = 18

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