Mathematics, 28.12.2020 09:20 rujirasri3620

If H be the H. M. between a and b.
prove that 1/H-a + 1/H-b = 1/a+1/b

Answers: 3

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If H be the H. M. between a and b.
prove that 1/H-a + 1/H-b = 1/a+1/b...