Question

Common difference of an arithmetic sequence is 4 and sum of first 15 terms is 450.
Find 8th term of the sequence ?
Find 1st term?

Pls explain

Answer 1

Answer:

Yaar sorry I can't understand the question that you have asked

Answer 2

Answer:

$t_{8} = 30$

Step-by-step explanation:

Let a be the first term and d be the common difference.

$t _{n} = a + (n - 1)d$

$s_{n} = \frac{n}{2} (2a + (n - 1)d)$

$s_{15} = 450 = \frac{15}{2} (2a + 56)$

Simplifying and solving for a, we get:

$a = 2$

Now, 8th term:

$t_{8} = 30$