Q56 · Practice questionComplex familiar5 marks
QUESTION 56 (5 marks)
The region under for is rotated about the -axis. Determine the exact volume of the solid formed.
WORKED SOLUTION
5 marksPractice marking scheme
ANSWER
cubic units.
Worked solution
The disc method gives Expanding and integrating,
Forms the volume-of-revolution integral.
Expands and integrates correctly.
Obtains the exact volume.
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