1.

If we want to choose 4 consecutive number then why do we choose (a - 3d), (a ­- d), (a + d), (a + 3d), why we have not chosen (a-2d), (a-d) ,(a+d), (a+2d).

Answer» If we want to choose 4 consecutive number then why do we choose (a - 3d), (a ­- d), (a + d), (a + 3d), why we have not chosen (a-2d), (a-d) ,(a+d), (a+2d).


Discussion

No Comment Found