Asked by jaz
Which expression is defined for all real numbers?
a) x + 3/x^2
b) 5/(x + 2)^2
c)4/(x − 2)^2
d)7/x^2 + 3
a) x + 3/x^2
b) 5/(x + 2)^2
c)4/(x − 2)^2
d)7/x^2 + 3
Answers
Answered by
Steve
any time there is a fraction, the function is undefined when the denominator is zero.
None of the choices is defined for all real numbers.
None of the choices is defined for all real numbers.
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