Question

If a b c are in hp prove that (1/a+1/b-1/c)(1/b+1/c-1/a)=4/ac-3/b^2

Answer 1

DEAR STUDENT,

Kindly refer to the following attached papers for a detailed solution and step by step elaboration along with vital elaborations to prove the two given sides in H.P.

$\boxed{\bf{\underline{HENCE \: \: PROVED}}}$

Which is the required proof or the final solution for these types of queries.

Hope this helps you and clears your doubts for Harmonic Progressions!!!!!!