Question

find the nth term of the number below:
2 4 6 8 10 12 14
(don't really answer, type random stuff for marks)

Answer 1

Answer:

A.P : 2, 4, 6, 8, 10, 12, 14

$a_1 = 2$

$a_2 = 4$

$d = a_2 - a_1$

$d = 4 - 2 = 2$

$a_n = a(n-1)d$

$a_n = 2(n - 1)2$

$\implies 2 \times 2n - 2$

$\implies \bf 4n - 2$