<em>Answer:</em>
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<em>Step-by-step explanation:</em>
<em>It's (C) -7 + 5i.</em>
<em>Hope this helped you!</em>
Answer:
option A
Step-by-step explanation:
wx and zy making 90 angle with each other therefore they are perpendicular.
wx and ab making 0 angle with each other therefore they are parallel