Sunday

December 21, 2014

December 21, 2014

Posted by **sh** on Tuesday, October 5, 2010 at 12:41am.

(2,infinity] ?

- math -
**MathMate**, Tuesday, October 5, 2010 at 1:42pmThe proposed answer is good for √(x-2).

However, since the denominator becomes negative between -2 and 1, the expression in the square-root radical is therefore positive on this interval.

So the domain can be revised to [2,∞)∪(-2,1).

Note that +2 is within the domain, because the denominator becomes zero. However, -2 and 1 are excluded because the denominator becomes zero.

- math -
**sh**, Tuesday, October 5, 2010 at 6:01pmWhen I factor out the bottom its x=-3 and x=2, how did you get -2 and 1? Why is +2 included? Doesn't it become undefined when x=2?

**Answer this Question**

**Related Questions**

Math - Find an equation of the line that bisects the obtuse angles formed by the...

Algebra - I know what the answer is just not how to exopress it. Can someone ...

Algebra - I know what the answer is just not how to exopress it. Can someone ...

Math Please Check - Please tell me if this are right. Thank you! Find the exact ...

Math - f(x)=root sign, and inside that x-2 and g(x)x-7. Which of the following ...

math - What is the domain and range of g(x) = (1/3) to the power of x? The ...

Algebra - f(x)=root sign, and inside that x-2 and g(x)x-7. Which of the ...

Algebra - Given f(x)=rootsignx-2 and g(x) = x-7 what is the domain of the ...

math - If f(x)=x-7 and g(x)=sqrt(4-x), what is the domain of the function f/g? a...

Algebra - Given f(x)=rootsignx-2 and g(x) = x-7 what is the domain of the ...