Evaluate the definite integral .

Answer and explanation

Correct answer: A.

  1. Step 1: Find the antiderivative: .
  2. Step 2: Evaluate at upper limit : .
  3. Step 3: Evaluate at lower limit : .
  4. Step 4: Compute .
Answer
.
Why not the others: '' computes ; '' subtracts 2 from 18; '' adds 2 to 18.

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