The harmonic mean between 2 and 4 is
a) 8/3
b) 3/8
c) 8/6
d) 6/8
Answers
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∴Harmonic mean between 2 and 4=38.
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a1 = 2,
a2 = 4.
∴ H.M.=21 + 412 =32×4 =38
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