Question

For the A.P. x + (x + 1) + (x + 2) + ….. + y (A) C.D. is 1 (B) number of terms is y – x + 1 (C) sum of the series is y x 1(x y) 2 - + + (D) none of these

Answer 1

Answer:

Option (A) is correct.

Step-by-step explanation:

Because if

(x+1)-x = 1

Therefore, d= 1