In a `/_\ABC, tan\ A/2 = 5/6` and `tan\ C/2 = 2/5` then (A) a,c,b are in A.P. (B) a,b,c are in A.P. (C) b,a,c are in A.P. (D) a,b,c are in G.P.

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 A.P and a,b,d are in G.P, prove that a,a-b,d-c are in G.P.

If a,b,c are in A.P., a,x,b are in G.P. and b,y,c are in G.P. then a^(2),b^(2),y^(2) are in

If a,b,c are in A.P; a,x,b are in G.P.and b,y,c are in G.P.then x^(2),b^(2),y^(2) are in

If a,b,c are in A.P. as well as in G.P. then

If bx+cy=a, there a, b, c are of the same sign, be a line such that the area enclosed by the line and the axes of reference is 1/8 square units, then : (A) b,a,c are in G.P. (B) b, 2a, c arein G.P. (C) b, a/2, c are in A.P. (D) b, -2a, 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.