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The Imaginary Unit

1. Equations and Inequalities / The Imaginary Unit / 문제 2

문제 2

Simplify the following expression and write the answer in standard form: 7/(1 + 3/i)

A

7/10 + (21/10)i

B

7/3 + (10/3)i

C

6/7 + (2/5)i

D

7 - 3i