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If z1 = 2 + 2i and z2 = 2 - 2i, what is the value of z1 * z2? (2019)

Practice Questions

1 question
Q1
If z1 = 2 + 2i and z2 = 2 - 2i, what is the value of z1 * z2? (2019)
  1. 8
  2. 0
  3. 4
  4. 4 + 0i

Questions & Step-by-step Solutions

1 item
Q
Q: If z1 = 2 + 2i and z2 = 2 - 2i, what is the value of z1 * z2? (2019)
Solution: z1 * z2 = (2 + 2i)(2 - 2i) = 4 - 4i^2 = 4 + 4 = 8.
Steps: 0

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