Question:medium
The domain of the function $f(x)=\sqrt{\frac{x+1}{2-x}}$ is
The domain of the function $f(x)=\sqrt{\frac{x+1}{2-x}}$ is
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Logic Tip: The critical point derived from the denominator of a rational function will ALWAYS be excluded with a parenthesis `)` or `(`, because division by zero is undefined. Knowing $x=2$ is the denominator's root instantly eliminates options B, which uses a bracket `]`.
Updated On: Apr 27, 2026
- [1,2)
- [-1,2]
- [-1,2)
- [-1,3)
- (-1,3)
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The Correct Option is C
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