What is ?
Answer and explanation
Correct answer: A.
- Step 1: Recognize that this limit represents the derivative definition for at , since .
- Step 2: Apply the power rule to differentiate : .
- Step 3: Evaluate the derivative at : .
Answer
.
Why not the others: Other values evaluate without subtracting , or fail to recognize the definition of the derivative of at .
Practise more Basic results.
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