Math, asked by asmiulislam533, 1 year ago

Which term in the A.P. 68, 64 60, ... is – 8?

Answers

Answered by ritujain1411978
2

Answer:

n=20

Step-by-step explanation:

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Answered by LtzswagGrant
17

Answer :-

Here,

  • a = 68
  • d = 64 - 68 = - 4
  • Tn = - 8

Tn = a + (n - 1)d

→ - 8 = 68 + (n - 1)(-4)

→ - 8 = 68 - 4n + 4

→ - 8 = 72 - 4n

→ 72 + 8 = 4n

→ 80 = 4n

→ n = 20

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