Evaluate the definite integral: .
Answer and explanation
Correct answer: C.
- Lower limit:
- Upper limit:
- Upper limit:
- Step 1: Use -substitution: let , then .
- Step 2: Convert the limits of integration:
- Step 3: Rewrite the integral: .
Answer
.
Why not the others: '' forgets to subtract ; '' evaluates only ; '' adds the boundary values instead of subtracting.
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