Asked by Miley
Given the following functions, perform the indicated operation and state the domain.
f(x) * g(x)
3X^1/2*6X^1/3. I got 18X^5/6. But without using a calculator how do i find the domain?????? Thanks:)
f(x) * g(x)
3X^1/2*6X^1/3. I got 18X^5/6. But without using a calculator how do i find the domain?????? Thanks:)
Answers
Answered by
Damon
If x is negative, then x^(1/2) is imaginary. (by the way x to the one third has two complex roots for negative x)
That kind of restricts the whole deal to positive real x.
That kind of restricts the whole deal to positive real x.
Answered by
Miley
i don't understand. Can you please explain in simplier terms, thanks:)
Answered by
Damon
you can not take the square root of a negative number, so x may not be negative
Answered by
Miley
there is no negative number though
Answered by
Damon
There is no negative X in the domain, exactly. The domain is all POSITIVE real X
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