Question

IS
178 a term of the a.p. 38, 13..
term is it
If it is a term of the seaqunce. what is it?​

Answer 1

Answer:

Here, a = 38, a2 =13, d= 13 - 38 = - 25

Let us assume an = 178

= a + (n - 1) d = 178

= 38 + (n - 1)(-25) = 178

= 38 - 25n + 25 = 178

= 63 - 25n = 178

= - 25n = 178 - 63

= - 25n = 115

= n = 115/ - 25

Since, value of n is fraction

Therefore, 178 is not a term of AP