Question

which term of a.p 72,6864,60 is 0
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Answer 1

Step-by-step explanation:

In the given AP, first term, a = 72 and common difference, d =

(68-72) = - 4.

Let its nth term be 0.

Then, Tn = 0

⇒ a + (n-1) d = 0

⇒ 72 + (n-1) × (-4) = 0

⇒ 76- 4n = 0

⇒ 4n =76

⇒n=19

Hence, the 19th term of the given AP is 0.

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