osanseviero
  • osanseviero
I need to find the natural domain of:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
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osanseviero
  • osanseviero
\[\frac{ x }{ \sqrt{-x ^{2}-x+2} }\] Can someone see if it is this?: |dw:1382585115287:dw|
osanseviero
  • osanseviero
I think I am wrong :/
anonymous
  • anonymous
Domain is -2 < x < 1.

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osanseviero
  • osanseviero
shouldnt -2 and 1 be included?
anonymous
  • anonymous
You want to make sure that what is in the square root, namely -x^2 - x + 2 > 0. Solving that quadratic inequality, yields -2 < x < 1.
anonymous
  • anonymous
NO! when x = -2 and x = 1, the denominator will equal 0, wjich is undefined!
osanseviero
  • osanseviero
Right! just noticed that! thanks
anonymous
  • anonymous
welcome.
osanseviero
  • osanseviero
:)
anonymous
  • anonymous
practice solving -x^2 - x + 2 > 0
anonymous
  • anonymous
to makes ure you get -2 < x < 1
anonymous
  • anonymous
sure*
osanseviero
  • osanseviero
Just did it, thanks :)
anonymous
  • anonymous
cool.

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