Question

a=5,d=3,a nth =15 then find n and s nth term of AP . solve​

Answer 1

Answer:

an = a + (n-1)d

=> 15 = 5 + (n-1) 3

=> 10 = 3n-3

=> 13 = 3n

=> n = 13/3

this AP can't be possible because n can't be a fraction.

Answer 2

Answer:

AP is not possible because nth term. is in fraction