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Q73. The harmonic mean between two numbers a and b is:

Mathematics — NUST Mock 9 — Question 73 of 200

A. (a + b) / 2
B. b ± √ab
C. 2ab / (a + b)
D. (a + b) / 2ab

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The harmonic mean between two numbers a and b is: | Mathematics MCQ #73 | Examora | Examora