Question

In an AP, if d = -2, n = 5 and an = 0, the value of a is ______.

विकल्प

• 10

• 5

• -8

• 8

Answer 1

In an AP, if d = -2, n = 5 and an = 0, the value of a is 8.

Explanation:-

d = -2, n = 5, a_n = 0

∵ a_n = 0

⇒ a + (n - 1)d=0

⇒ a + (5 - 1)(-2) = 0

⇒ a = 8