Question

If p, q and r are three consecutive terms of an AP whose common difference is d, then the value of r-p is ____ .​

Answer 1

Answer:

2d

Step-by-step explanation:

here r is the 3rd term so, n = 3

we know that, An = A+(n-1)d

since , r = p+(3-1)d

hence, r-p = 2d