f(x) = (square root -x) / x^3 + 2x^2 - 3x find the domain of f

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- Oct 23rd 2006, 08:25 PMrobinpatrickdomain of f
f(x) = (square root -x) / x^3 + 2x^2 - 3x find the domain of f

- Oct 23rd 2006, 08:33 PMThePerfectHacker
1)The square root needs to be non-negative.

Thus, for thus, .

2)The numerator cannot be zero.

Thus,

.

Since the only one of those that works is thus,

Thus,

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[Note for you, for anyone interested in anything I have to say].

These domain seem not be be well-defined, because to definied a function you need to create a domain and co-domain which you did not do here. Thus, how can you find a domain? - Oct 24th 2006, 07:20 AMtopsquark