If `a,b,c,d,e,f` are in A.P.then `e-c=`
A) 2(c-a)
B) 2(d-c)
C) 2(f-d)
D) (d-c)

If a,b,c,d,e,f are in ..., then e-c is equal to

If a, b, c, d, e, f are in A.P., then e – c is equal to

If a,b,c,d be in G.P. show that (b-c)^2+(c-a)^2+(d-b)^2=(a-d)^2.

If a, b, c, d are in G.P., then prove that: (b-c)^(2)+(c-a)^(2)+(d-b)^(2)=(a-d)^(2)

If a,b,c,d,e are in H.P., then a/(b+c+d+e), b/(a+c+d+e),c/(a+b+d+e), d/(a+b+c+e), e/(a+b+c+d) are in (A) A.P. (B) G.P. (C) H.P. (D) none of these

If a,b,c,d are four positive numbers then (A) ((a)/(b)+(b)/(c))((c)/(d)+(d)/(c)) =4.sqrt((a)/(c))(C)(a)/(b)+(b)/(c)+(c)/(d)+(d)/(e)+(e)/(a) =(1)/(5)

If P={c,d} and U=(a,b,c,d,e}, Find P'

If a,b,c are in H.P,b,c,d are in G.P, and c,d,e are in A.P, then (ab^(2))/((2a-b)^(2)) is equal to