Perform each operation with complex numbers. Give answers in $a+b i$ form.
(a) $(2+6 i)-(1-3 i)$
(b) $\frac{7+4 i}{1+2 i}$
(c) Simplify $i^{39}$
(d) $-2 i(5-i)^{3}$

Name: Perform each operation with complex numbers. Give answers in $a+b i$ form. (a) $(2+6 i)-(1-3 i)$ (b) $\frac{7+4 i}{1+2 i}$ (c) Simplify $i^{39}$ (d) $-2 i(5-i)^{3}$
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Question

Quizplus · Accepted Answer

The Answer is (a)

1+9 i

(b)

3-2 i

(c)

-i

(d)

-148-220 i

Perform Each Operation with Complex Numbers a+bia+b ia+bi Form (A) (2+6i)−(1−3i)(2+6 i)-(1-3 i)(2+6i)−(1−3i)

Perform Each Operation with Complex Numbers $a+b i$ Form
(A) $(2+6 i)-(1-3 i)$