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Complex Number

Complex Number (Question)

Simplify the following complex number expressions.

  1. (2 + 3i) + (1 + i)
  2. (2 + 3i) – (1 + i)
  3. (2 + 3i) * (1 + i)
  4. (3 + 3i) / (2 + i)

Guide:

Complex Number
x + yi

x = real number
yi = Imaginary number

Together they combined as complex number.

Complex Number (Answer)

  1. 3 + 4i
  2. 1 + 2i
  3. -1 + 5i
  4. 9/5 + 3/5 i

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I am Dr Loo, a PhD holder with 8 years of teaching experience on secondary school and tertiary level specialize on mathematics and statistics. In addition, I also received teaching training under tertiary setting. Furthermore, I have published 5 research papers on international peer reviewed journals. If you are currenlty looking for mathematics tuition in Singapore, I do provide O-level Math Tutoring & JC Math Tutoring (H1 Math Tuition Class & H2 Math Tuition Class).

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