If `x >1,y >1,a n dz >1` are in G.P., then `1/(1+lnx),1/(1+l ny)a n d1/(1+l nz)` are in `AdotPdot` b. `HdotPdot` c. `GdotPdot` d. none of these

If x>1,y>1,z>1 are in GP,then (1)/(1+1nx),(1)/(1+1ny),(1)/(1+1nz) are in (1998,2M)AP(b)HP(c)GP(d) none of these

If xgt1,ygt1,zgt1 are in G.P. then 1/(1+Inx), 1/(1+Iny), 1/(1+Inz) are in (A) A.P. (B) H.P. (C) G.P. (D) none of these

If A,B,C, are the angles of a triangle such that cot(A/2)=3tan(C/2), then sinA ,sinB ,sinC are in (a)AdotPdot (b) GdotPdot (c) HdotPdot (d) none of these

IF a,b,c are in G.P and a^(1/x)=b^(1/y)=c^(1/z) then x,y,z are in

If a,b,c are in G.P.and a^(1/x)=b^(1/y)=c^(1/z) then xyz are in AP(b)GP(c)HP(d) none of these

If a,b,c,d be in G.P. and a^x=b^y=c^z=d^w , prove that 1/x,1/y,1/z,1/w are in A.P.

If a,b,c are proper fractiion are in H.P. and x sum_(n=1)^oo a^n, y=sum_(n=1)^oo b^n, z= sum_(n=1)^oo c^n then x,y,z are in (A) A.P. (B) G.P. (C) H.P. (D) none of these

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 a,b,c, are in G.P. , a.x.b in A.P. and b,y,c in A.P., then : (a)/(x)+( c )/(y) = (A) 1/2 (B) 1 (C) 2 (D) none of these