Respuesta :

zihan2091987

Answer:

d

To find the harmonic mean of a set of n numbers, add the reciprocals of the numbers in the set, divide the sum by n, then take the reciprocal of the result. The harmonic mean of {a1, a2, a3, a4, . . ., an}

2(2 numebrs) / 1/3+1/5

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