Question

find the 60th term of an ap 8, 10 ,12_ _ _ _ _ _ if it has a total of 60 terms and hence find the sum of its last 10 terms​

Answer 1

Answer:

Step-by-step explanation:

In an A.P.,

a = 8 , d = 2 , n = 60 , t60 = ?.

tn = a + ( n - 1 ) d

= 8 + ( 60 - 1 ) 8

= 8 + 59 x 8

= 8 + 472

= 480.

60th term of an A.P. is 480.