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domain of the function f(x) = sqrt[5](7x^2 - 12x)  TOPIC_SOLVED

Please, help me with this equation f(x) = sqrt[5](7x^2 - 12x). I need to find the domain of this function and indicate it in interval notation.
While I know how to find domain of f(x) = sqrt(7x^2 - 12x) I am struggling with the first function.
by mxmbulat
on Sat Jan 21, 2012 11:43 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: domain of the function f(x) = sqrt[5](7x^2 - 12x)
Replies: 3
Views: 1839

Re: domain of the function f(x) = sqrt[5](7x^2 - 12x)  TOPIC_SOLVED

I mean this equation:

Image

Yes, I know that one cannot have negatives in even-indexed roots, but I somehow found myself dumb at answering for the odd-indexed roots.
by mxmbulat
on Mon Jan 23, 2012 8:37 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: domain of the function f(x) = sqrt[5](7x^2 - 12x)
Replies: 3
Views: 1839

Re: domain of the function f(x) = sqrt[5](7x^2 - 12x)  TOPIC_SOLVED

Yes, I know that one cannot have negatives in even-indexed roots, but I somehow found myself dumb at answering for the odd-indexed roots. Nevermind, following the logic that only even-indexed roots cannot have negatives, I assumed that in the case of the odd-indexed roots negatives can be inside th...
by mxmbulat
on Mon Jan 23, 2012 8:49 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: domain of the function f(x) = sqrt[5](7x^2 - 12x)
Replies: 3
Views: 1839

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