If the harmonic mean between \[a\] and \[b\] be \[H\], then the value of \[\frac{1}{H-a}+\frac{1}{H-b}\] is

If the harmonic mean between \[a\] and \[b\] be \[H\], then the value

1.	If the harmonic mean between \[a\] and \[b\] be \[H\], then the value of \[\frac{1}{H-a}+\frac{1}{H-b}\] is
A.	\[a+b\]
B.	\[ab\]
C.	\[\frac{1}{a}+\frac{1}{b}\]
D.	\[\frac{1}{a}-\frac{1}{b}\]
Answer» D. \[\frac{1}{a}-\frac{1}{b}\]

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If the harmonic mean between \[a\] and \[b\] be \[H\], then the value of \[\frac{1}{H-a}+\frac{1}{H-b}\] is

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