If `1/(b-a)+1/(b-c)=1/a+1/c ,` then A. `a ,b ,a n dc` are in H.P. B. `a ,b ,a n dc` are in A.P. C. `b=a+c` D. `3a=b+c`

If (1)/(b-a)+(1)/(b-c)=(1)/(a)+(1)/(c), then a b,c are in (A) AP(B)GP(C)HP(D) NONE

If a,b,c, are in A.P., b,c,d are in G.P. and c,d,e, are in H.P., then a,c,e are in

If a,b,c are in H.P , b,c,d are in G.P and c,d,e are in A.P. , then the value of e is

If 1/a,1/b,1/c are in A.P and a,b -2c, are in G.P where a,b,c are non-zero then

"If "(1)/(a+b),(1)/(2b),(1)/(b+c) are in A.P., then prove that a, b, c are in G.P.

If l n(a+c),l n(a-c)a n dl n(a-2b+c) are in A.P., then (a) a ,b ,c are in A.P. (b) a^2,b^2, c^2, are in A.P. (c) a ,b ,c are in G.P. d. (d) a ,b ,c are in H.P.

If a((1)/(b)+(1)/(c)),b((1)/(c)+(1)/(a)),c((1)/(a)+(1)/(b)) are in A.P.prove that a,b,c are in A.P.

if (1)/(b+c),(1)/(c+a),(1)/(a+b) are in A.P. prove that a^(2),b^(2),c^(2) are also in A.P.