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Law Incorporation [45]
3 years ago
6

It is given that 2^x = 5^y = 10^z , express z in terms of x and y​

Mathematics
2 answers:
weqwewe [10]3 years ago
4 0

9514 1404 393

Answer:

  z = (xy)/(x+y)

Step-by-step explanation:

Taking logarithms base 10, we have ...

  x·log(2) = y·log(5) = z·log(10)

  z = x·log(2) = y·log(5) . . . . . . . . log(10) = 1

__

Then z/x = log(2), and z/y = log(5), so ...

  z/x +z/y = log(2) +log(5) = log(2·5) = 1

  z = 1/(1/x +1/y) = 1/((x+y)/(xy))

  z = (xy)/(x+y)

aksik [14]3 years ago
4 0

Answer:

Step-by-step explanation:

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