Question

If the sum of the first 14 term of an a.p. is 1050 and it first term is 10 then find the 20th term

Answer 1

here is your answer mate

20 th term is 200

hope it helps you❤❤❤❤❤

Answer 2

Answer:-

Here,

$s_{n} = 1050$

$n = 14$

$a = 10$

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

$1050 = \frac{14}{2} (2 \: (10) + 13d)$

$= > 140 + 91d$

$= > 910 = 91d$

☯︎d = 10☯︎

$7$

$= > a_{20} = 10 + (20 - 1)10 = 200$

❀Good luck ❀