Question

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

Answer 1

Answer:

Given:

d=−2

n=5

an=0

We know:

an=a+(n−1)d

∴0=a+(5−1)(−2)

∴a=8

Hence, the value of a is 8.

Step-by-step explanation:

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Answer 2

Answer:

8

Step-by-step explanation:

nth term in AP is given by a + (n - 1)d, where a is first term and d is common difference,

Here,

⇒ a + (5 - 1)(-2) = 0

⇒ a + 4(-2) = 0

⇒ a = 8