QuestionThe variables $z_{1}$ and $z_{2}$ are defined as $z_{1}=6+3 i$ and $z_{2}=10+8 i$ . Which expression is equivalent to $z_{1} z_{2}$ ? A. $84+78 i$ B. $36+78 i$ C. $60+54 i$ D. $16+11 i$

Studdy Solution
Identify the equivalent expression from the given options:
The expression $36 + 78i$ matches option B.
The expression equivalent to $z_1 z_2$ is $\boxed{36 + 78i}$ .

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