This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.

ScanSolve AI Answer
Answer
\text{(b) -\frac{1}{2}}
Step 1: Understand when a fraction is undefined. A fraction is undefined when its denominator is equal to zero. For the given expression , the denominator is .
Step 2: Set the denominator equal to zero. To find the value of for which the expression is undefined, we set the denominator to zero:
Step 3: Solve for . Subtract 1 from both sides of the equation: Divide by 2:
Step 4: Compare with the given options. The calculated value matches option (b).
The final answer is \boxed{(b) -\frac{1{2}}}. Last free one today — make it count tomorrow, or type /upgrade for unlimited.
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Understand when a fraction is undefined. A fraction is undefined when its denominator is equal to zero.
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.