cherylmorton7302
24.07.2019 •
Mathematics
Find the domain of f(x)= x-9/x^2-81
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Ответ:
Two scenarios depending on if parenthesis are missing ..
iff only the x^2 is in the denominator then x is all reals except x ≠ 0.
iff (x^2 - 81) is in the denominator then x is all reals except x ≠ 9 or x ≠ -9.
Ответ: