Question

find hormonic mean of 1,2,4,8,16.....2^n we​

Answer 1

Answer:

Harmonic Mean -

If x1, x2, x3,....xn are the n harmonic means then \frac{1}{x_{1}},\frac{1}{x_{2}}\cdots \frac{1}{x_{n}} be their corresponding Arithmetic means

so Harmonic Mean (H) = \dpi{100} \frac{1}{Arithmetic \: mean(A)}

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H.M. of 4, 8, 16 =\frac{3}{\frac{1}{4}+\frac{1}{8}+\frac{1}{16}}=6.85