Question

For the following a.p.find tn.4,9,14,19....... .. answers

Answer 1

Given A.P.

4,9,14,19

Common difference (d) = 9 - 4 = 5

=> d = 5

First term (a) = 4

=> a = 4


Hence,

Tn = a + (n - 1)d



Side note :-

Verification,

Given third term = 14

=> T3 = a + (3 - 1) d

=> 14 = 4 + (2)5

=> 14 = 4 + 10

=> 14 = 14

LHS = RHS

=> The formula is correct


Tn = a + (n - 1)d