Question:

If \( -1<w<1 \), all of the following must also be greater than \(-1\) and less than 1 EXCEPT for which choice?

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Check each transformation (square, root, scaling, absolute) individually against inequality limits.
Updated On: Sep 30, 2025
  • \( w^2 \)
  • \( \dfrac{3w}{2} \)
  • \( |w| \)
  • \( \dfrac{w}{2} \)
  • \( |w|^{0.5} \)
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The Correct Option is A

Solution and Explanation

Step 1: For \( -1<w<1 \), absolute value satisfies \( |w|<1 \).

Step 2: Scaling by fractions like \( \dfrac{w}{2}, \dfrac{3w}{2} \) keeps values in \((-1, 1)\).

Step 3: Absolute and root forms like \( |w|, |w|^{0.5} \) also stay within bounds.

Step 4: However, \( w^2 \) ranges from 0 to 1, and at the boundary can reach 1, violating strict condition.
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