Recap!

Starter MEI complex number questions ‘complex number i’ It’s in MEI further maths pupils can use white boards in pairs and then take majority answer php?id= php?id=3687

Aims: To practice the three operations with complex numbers and quadratics. To be able to use the fact that 2 complex numbers are equal if and only if the real and imaginary parts are equal. Complex Numbers Lesson 2

Conditions for two Complex N o ’s to be equal 1. Their real parts must be equal 2. Their imaginary parts must be equal A complex number is Real partImaginary part RECALL

Conditions for two Complex N o ’s to be equal Example 1 Find the real numbers x and y if: 3x – 2y + 3i = 4 + (x + y)i

Solving Complex Numbers Equations

Example 2 Solve (1 + 5i)z – 2z* = 3 + 7i to find the complex number z.

1.Do ex 7C page Revision Ex, page 106, do all except question 9. 3.Moodle h/w to be checked in one week. Solving Complex Numbers Equations

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