The region under for is rotated about the -axis. What is the volume?

Answer and explanation

Correct answer: C. , from

  1. Step 1: The volume is . Step 2. This equals . **Answer: , from . Why not the others:** halves again, forgets the denominator 2, and integrates instead of .

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The region under y… | Ylioppilastutkinto (Finnish Matriculation)