Evaluate the integral: .
Answer and explanation
Correct answer: D.
At : .
At : .
At : .
- Step 1: Use integration by parts: let , .
- Step 2: .
- Step 3: Evaluate from to :
- Step 4: Subtract: .
Answer
pi/2 - 1.
Why not the others: '' miscalculates lower limit sign; '' omits the boundary term.
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