Evaluate .
Answer and explanation
Correct answer: B.
- Step 1: Direct substitution yields , an indeterminate form.
- Step 2: Factor the numerator: .
- Step 3: Cancel the non-zero common factor for : .
- Step 4: Evaluate: .
Answer
.
Why not the others: '' assumes numerator evaluates to 0; '' substitutes 3 without factoring; 'Does not exist' treats indeterminate form as undefined limit.
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