f(x) = 1 / squarroot(x) g(x) = x^2 - 4x how do i begin?
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What values can't you plug into the function?
0 or anything negative?
So your domain: .. i.e. non-zero and non-negative values.
Wow, so then (f/g)(x) would have the same domain? And so would (fog)(x) And so would (f + g)(x) for these same values of g and f??? f(x) = 1 / squarroot(x) g(x) = x^2 - 4x
There's an extra restriction here. Remember, can't have a division by 0. Just like earlier analysis, we can't have a division by 0 nor a square root of a negative number. So, our domain is restricted to values such that:
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