Topics
Complex Numbers
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India
Class XI

Multiplication of Complex Numbers

Lesson
Practice

Interactive practice questions

$\left(6+5i\right)^2=36$(6+5i)2=36

a

Is the statement true or false?

True

A

False

B
b

What should should the right side of the equation be?

Easy
2min

Simplify $-6\left(3-5i\right)$−6(3−5i).

Easy
< 1min

Simplify $7i\left(3-2i\right)$7i(3−2i), writing your answer in terms of $i$i.

Easy
< 1min

Simplify $\sqrt{10}i\left(8+\sqrt{10}i\right)$√10i(8+√10i), writing your answer in terms of $i$i.

Easy
1min
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Outcomes

11.A.CNQE.1

Need for complex numbers, especially √-1, to be motivated by inability to solve every quadratic equation. Brief description of algebraic properties of complex numbers. Argand plane and polar representation of complex numbers. Statement of Fundamental Theorem of Algebra, solution of quadratic equations in the complex number system.

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