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OpenStudy (anonymous):
find the nonpermissible replacement for the variable a in this expression (4)/(-9a)
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OpenStudy (mathmale):
Welcome to Open Study! Glad to have you aboard. Wow! "nonpermissible replacement for the variable a" is quite a mouthful. I'd like to know what YOU think that refers to. Hint: consider domain and range.
OpenStudy (mathmale):
Would you please reply.
OpenStudy (anonymous):
Would it be not having zero as a?
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