Paper 1 · Complex Numbers
⏱ Tested in 5 exam questions since 2015
Lesson 5 of 7
LCOL Complex Numbers 5: Conjugate and Modulus
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- Find the modulus of a + bi: |a + bi| = √(a² + b²)
- Work out what's inside the modulus first, then apply the formula
- Answer ‘investigate’ questions by fully simplifying each side before comparing
Most recent exam questions
- 2021 P1 Q2(c)
- 2019 P1 Q2(a)(iii)
- 2018 P1 Q2(b)
- 2016 P1 Q2(c)
- 2015 P1 Q6(b)(ii)
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