Question

in an AP the CD is double the first term 'a' then the nth term is​

Answer 1

Step-by-step explanation:

We are given that d = 2a

So , aₙ = a + (n - 1)d

aₙ = a + (n - 1)2a

aₙ = a ( 2n - 2 + 1)

aₙ = a( 2n - 1)

Hope the answer helps you.