Question

how we find a n term of the sequence​

Answer 1

Answer:

To find the "nth" term of an arithmetic sequence, start with the first term, a(1). Add to that the product of "n-1" and "d" (the difference between any two consecutive terms). For example, take the arithmetic sequence 3, 9, 15, 21, 27.... a(1) = 3. d = 6 (because the difference between consecutive terms is always 6.

Hope it helps you friend

Answer 2

$\underline{\boxed{\bf{Arithmetic \: Progression}}}$
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In a sequence, if the difference between two consecutive terms is same then the sequence is known as an A.P.
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The first term is known as " a " .

The common difference is known as " d " .

The 'nth term' is given by : $\Large\sf\red{\underline{\fbox{\green{a_n = [a + (n - 1)d]}}}}$

The sum of 'n' terms is given by : $\Large\sf\red{\underline{\fbox{\green{S_n = \frac{n}{2} [2a + (n - 1)d]}}}}$
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