Question

. If 2009th term of A.P. is 2x and 2008th term is 3y, then find t2



pls ans right

Answer 1

( n - 1 ) ( y - x) = x

n - 1 = x / ( y - x)

n = y / ( y - x) .. ( 3)

Hence as we know sum terms of an AP

AP = n