1.

If H is the harmonic mean of P and Q, then the value of H/P + H/Q is

A. 1
B. 2
C. \(\frac{{P + Q}}{{PQ}}\)
D. \(\frac{{PQ}}{{P+Q}}\)
Answer» C. \(\frac{{P + Q}}{{PQ}}\)


Discussion

No Comment Found