Question

find n th term of the arthematic progression is 11, 9, 7, 5 is​

Answer 1

$\huge\mathbb\red{ANSWER}$

AP = 11,9,7,5,...nth term

Common Difference(d) = 9 - 11 = -2

First Term (a) = 11

n th term = an = a + (n - 1) d

an = 11 + ( n - 1)-2

=> 11 - 2n + 2

=> 13 - 2n

Hence,

an = 13 - 2n