Foundation
Mathematics Foundation
nth term of AP
Question
The 8th term of an AP is 17 and its 14th term is 29. The common difference of the AP is
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Solution
(T14 – T8) = (29 – 17) = 12 ⇒ (a + 13d) – (a + 7d) = 12 ⇒ 6d = 12 ⇒ d = 2.