Question

Find the eighteenth term of A.P. 25,19,13,7,.....

Answer 1

Explanation:

Let a is the first term and d is the common difference of AP

here a = 7

and d = 6

use formula ,

Tn = a + ( n -1)d

= 7 + ( n -1)6

= 1 + 6n

.....i hope its helpful for u ..... thnk u