Question

if in an AP a = 3 and d= -1 , then 30 th term is​

Answer 1

Answer:

We have formulae,

a(n) = a + (n-1)d

a(30) = 3 + 29(-1)

a(30) = -26

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Answer 2

To find the series, we will plug in numbers in the above expression.

For n = 1, 3n - 1 = 2

n = 2, 3n - 1 = 5

n = 3, 3n - 1 = 8

So, the sequence we get is 2, 5, 8, 11, ...

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