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National
Easy
Complex Numbers
10–12
Write
2
1
−
i
\frac{2}{1 - i}
1
−
i
2
in algebraic form.
Escreve
2
1
−
i
\frac{2}{1 - i}
1
−
i
2
na forma algébrica.
Answer options
A.
−
1
+
i
-1 + i
−
1
+
i
B.
1
−
i
1 - i
1
−
i
C.
2
+
2
i
2 + 2i
2
+
2
i
D.
1
+
i
1 + i
1
+
i
Check Answer
Solution
Step 1 of 3
1.
Multiply numerator and denominator by the conjugate
1
+
i
1 + i
1
+
i
.
Next step
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