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COMPLEX NUMBERS

Remember. COMPLEX NUMBERS. WJEC FP1 JUNE 2008. Remember. We will simplify each part in a similar way to simplifying SURDS in C1. becomes. Now collecting REAL and IMAGINARY parts. And part a is complete for 5 marks. im. -3. -7. In the ARGAND DIAGRAM we see

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COMPLEX NUMBERS

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  1. Remember COMPLEX NUMBERS WJEC FP1 JUNE 2008

  2. Remember We will simplify each part in a similar way to simplifying SURDS in C1.

  3. becomes Now collecting REAL and IMAGINARY parts And part a is complete for 5 marks

  4. im -3 -7 In the ARGAND DIAGRAM we see that z is in the 3rd Quadrant The MODULUS is the length of the line drawn in the ARGAND DIAGRAM

  5. im ARG z = Find Angle Or The ARGUMENT is the CLOCKWISE rotation Between the REAL AXIS and the COMPLEX NUMBER Since the COMPLEX NUMBER is in the 3rd Quadrant The NEGATIVE ARGUMENT is the ANTICLOCKWISE rotation Between the REAL AXIS and the COMPLEX NUMBER

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