Level 3 Complex Numbers Walkthrough
2020 NCEA Level 3 Complex Numbers Question 1(a)
2020 Complex Numbers
Walkthrough overview
What this question practises
This 2020 walkthrough is part of AS91577 — Apply the algebra of complex numbers in solving problems.
Method: Multiplying complex numbers and matching corresponding parts.
This is Question 1(a) from the 2020 NCEA Level 3 Complex Numbers paper for AS91577 — Apply the algebra of complex numbers in solving problems. Use the guided hints to practise the method before revealing the full working.
Calc.nz is an independent learning resource. Compare questions, diagrams, and assessment information with the official NZQA resources for AS91577.
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Learning summary
Review the method, not only the answer
This walkthrough helps you practise multiplying complex numbers and matching corresponding parts. Use the hints to plan the method, then repeat the question without hints and check each step.
Common mistake to avoid
Check each step against the original condition, preserve signs and restrictions, and confirm that the final result answers the question asked.
Continue practising
- All 2020 Complex Numbers walkthroughs
- All AS91577 Complex Numbers years
- Practise more questions using this skill: Complex-number algebra