" (i) "(1)/(bc),(1)/(ca),(1)/(ab)" A.P.में Huh. "

If a, b, c are in A.P. that the following are also in A.P:(i) (1)/(bc),(1)/(ca),(1)/(ab)

If a, b, c are in A.P., then prove that : (i) b+c,c+a,a+b" are also in A.P." (ii) (1)/(bc),(1)/(ca),(1)/(ab)" are also in A.P." (iii) (a(b+c))/(bc),(b(c+a))/(ca),(c(a+b))/(ab)" are also in A.P."

If a,b,c are in A.P,prove that (1)/(bc),(1)/(ca),(1)/(ab), is also in A.P.

If a, b, c are in H.P., prove that, (1)/(bc), (1)/(ca), (1)/(ab) are in H.P.

If a,b,c are in A.P. prove that the following are also in A.P. (1)/(bc), (1)/(ca) , (1)/(ab)

If a,b,c are in A.P then a+(1)/(bc),b+(1)/(ca),c+(1)/(ab) are in

In a triangle A BC, (1)/(bc) + (1)/(ca) + (1)/(ab) = (k)/(2) , then k=

The value of the determinant |((1)/(a),1,bc),((1)/(b),1,ca),((1)/(c),1,ab)| is -

If a,b,c are in A.P. prove that: (i) (ab)^(-1),(ca)^(-1) and (bc)^(-1) are also in A.P. (ii) (ab+ac)/(bc),(bc+ca)/(ca),(ca+cb)/(ab) are also in A.P.