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nasty-shy [4]
3 years ago
7

Which of all the following inequalities is true for all real values of x?

Mathematics
1 answer:
siniylev [52]3 years ago
3 0

Answer:

  C.  1/(x^2 +1) > 0

Step-by-step explanation:

The cube of a negative number is negative, eliminating choices B and D for certain negative values of x.

1/x^2 is undefined for x=0, so cannot be compared to zero.

The value 1/(x^2+1) is positive everywhere, so that is the expression you're looking for.

  1/(x^2 +1) > 0

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