Practice variation 3 of 3
Volume of revolution — Washer setup
Your question
Express the sculpture volume as a single washer integral in for the original problem, then evaluate.
This practice question was inspired by Question 13(a) in the 2021 NSW HSC Mathematics Extension 1 examination, © NESA. It is an original TestMum variation that practises the same mathematical idea, not an official NESA question.
Before you check
- Have you stated every choice or assumption?
- Can another student follow each line?
- Did you verify the final result independently?