Next exams: Wednesday 2nd May, Thursday 3rd May, Wednesday 9th May, Thursday 17th May, Friday 18th May
2 May, 2018 (PM)
Mathematics Higher Level Paper 1
3 May, 2018 (AM)
Mathematics Higher Level Paper 2
9 May, 2018 (PM)
Mathematics Higher Level Paper 3: option
17 May, 2018 (PM)
Further Mathematics Higher Level Paper 1
18 May, 2018 (AM)
Further Mathematics Higher Level Paper 2
To divide two complex numbers, multiply by the complex conjugate of the denominator.
note about graphic calculators
A graphic calculator, for example the TI-83 or similar model, can work with complex numbers.
First select MODE and move down to select a+bi:
Then press 2nd QUIT and enter a complex number sum.
Software/Applets used on this page
A number of the form a+bi where i is the square root of -1, and a and b are real.
of a complex number a+bi is a-bi.
the integer on the bottom of a fraction
the value in a set of discrete data that occurs most frequently
The union of two sets A and B is the set containing all the elements of A and B.
Equal to F x s, where F is the force in Newtons and s is the distance travelled and is measured in Joules.
More in this topic
2 Imaginary numbers
6 Complex conjugate
8 More calculations
9 Simplifying expressions
10 Modulus properties
11 Properties of conjugates
12 Properties 2
13 Properties 3
14 Properties 4
15 Properties 5
16 Modulus and conjugate
17 Calculations on a GDC
19 Matching O-test
20 Sequence O-test
21 Exam O-test 1
22 Exam O-test 2
23 Exam O-test
24 Exam timed O-test
25 Exam Question
26 Exam Question
27 Exam Question
28 Exam Question
29 Exam Question
30 Exam Question
31 Exam Question
32 Exam Question