Question

5. If x  R, the numbers 51 + x + 5 1 ñ x, a/2, 25x + 25ñx

form an A.P. then ëaí must lie in the interval;

(A) [1, 5] (B) [2, 5]

(C) [5, 12]

(D) [12, )​

Answer 1

Answer:

1,5...........................