The function has a local maximum at which value of ?

Answer and explanation

Correct answer: A. 2

  1. Step 1: .
  2. Step 2: The critical points are and .
  3. Step 3: changes from positive to negative at , so that is the local maximum.
Answer
2.
Why not the others: 5: this is the local minimum. 7: the two critical points were added. 10: the two critical points were multiplied.

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