MathReference -
Problems
MR-126 / 126. problem
All Problems
Source:
MathReference: Generic Math Textbook - 126.)
Algebra → Complex numbers → Multiplication of complex numbers
=
3
2
-
4
i
2
=
9
-
4
2
·
i
2
=
9
-
16
·
-
1
=
9
+
16
=
25
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