Practice variation 1 of 3
Mathematical induction — Base and one step only
Your question
Verify the given identity for by direct computation of both sides.
This practice question was inspired by Question 12(c) 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?