Evaluate .
Answer and explanation
Correct answer: C.
- Step 1: Let , so and .
- Step 2: The limits become to .
- Step 3: .
Answer
.
Why not the others: : forgets the factor . : forgets to subtract the lower-limit value. : squares by substituting for the upper limit twice.
Practise more Integration.
Free questions with an explanation for every one, and full timed ESAT (Engineering and Science Admissions Test) mock tests.