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28-07-2017
Mathematics

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Determine the domain of the function. f(x) is equal to four divided by x squared.
A. x ≥ 0
B. All real numbers except 0
C. All real numbers except 3
D. All real numbers

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Аноним Аноним

28-07-2017

f(x) = 4/x^2

Think what values of x give real values of f(x)

negative numbers are Ok andso are positive ones

What about x = 0? What is the value of 4 / (0)^2 ?

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