What is the value of the product (3 – 2i)(3 + 2i)?
5
9 + 4i
9 – 4i
13
...
Mathematics, 12.12.2019 05:31 torigirl4126
What is the value of the product (3 – 2i)(3 + 2i)?
5
9 + 4i
9 – 4i
13
(3 - 2i)(3+2i) = (3 * 3) + (-2i * 2i) = 9 + -4i^2
i^2 = -1 so we have
9 +-4(-1)
= 9 + 4
= 13
is my work correct here?
Answers: 2
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