Question

If nth term of Ap is (7-2n) ,then it's 25terms​

Answer 1

AnSwer :-

nth term of AP = 7-2n

$\bold{ \implies a_{n} = 7 - 2n }$

now,

• n = 25

$\bold{ \implies a_{25} = 7 - (2 \times 25)} \\ \\ \bold{\implies a_{25} = 7 - 50} \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \bold{\implies \underline{ \underline { a_{25} = - 43}}} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

hence, 25th term of AP is -43