Question

the harmonic mean of the numbers 2,4 and 8 is ?​

Answer 1

Step-by-step explanation:

Looking at the denominator, to add the fractions we need them to have the same denominator.

Dividing by a fraction is numerically the same as multiplying by the reciprocal of the fraction.

The geometric mean of  values is calculated by taking the principal  root of the product of the values.

So, in this case, the difference is 

3.1K views

View upvotes

1

Related Questions (More Answers Below)

Answer 2

Answer:

24/7 = 3.42

Step-by-step explanation:

$Harmonic \: \: mean = \frac{n}{ \frac{1}{x1} + \frac{1}{x2} + \frac{1}{x3} } \\ \\ = \frac{3}{ \frac{1}{2} + \frac{1}{4} + \frac{1}{8} } \\ \\ = \frac{3}{ \frac{4 + 2 + 1}{8} } \\ \\ = \frac{3(8)}{7} \\ \\ = \frac{24}{7}$