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13-06-2018
Mathematics

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When multiplied, what is the simplified form of (7 − 11i)(5 + 6i)? Write the answer in standard form, a + bi, where a and b are real numbers.

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13-06-2018

7-11i and 5+6i are two complex numbers. If you want to find their product, you have two multiply these two numbers in natural way, remembering that [tex]i^2=-1[/tex]. So,
[tex](7-11i)(5+6i)=35+42i-55i-66i^2=35-13i+66=101-13i[/tex]

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