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Question
In an AP, if d = -2, n = 5 and an = 0, the value of a is ______.
Options
10
5
-8
8
MCQ
Fill in the Blanks
Solution
In an AP, if d = -2, n = 5 and an = 0, the value of a is 8.
Explanation:-
d = -2, n = 5, an = 0
∵ an = 0
⇒ a + (n - 1)d=0
⇒ a + (5 - 1)(-2) = 0
⇒ a = 8
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