If a,b,c,d,e,f are in AP then e - c is equal to what?
We have given a,b,c,d,e,f are in A.P
So, let common difference = x
so, a+x=b
a+2x=c
a+3x = d
a+4x = e
a+5x = f
=> e-c = a+4x-(a+2x) = 2x
If a, b, c, d, e, f are in AP, then (d -b) is equal to