Algebra II4.6: Imaginary NumbersQuiz 4.5-4.6: Thursday, Oct. 16th

Imaginary Numbers

1

1

1

4

3

2

i

ii

i

i

1111 because

11 because

1111 because

4

3

2

ii

Therefore

1 1

1 1

84

73

62

51

ii

iiii

ii

iiii

Simplify

1.)

2.)

3.)51

44

15

i

i

i

Complex Numbers in Standard Form

Standard Form: Write the expression as a complex

number in standard form.(Practice B evens)

1.)

2.)

3.)

bia

)3(2

)54()4(

)3()1(

ii

ii

ii

Algebra II4.6: Imaginary NumbersHW: p.279-280 (4-32 even)Quiz 4.5-4.6: Thursday, Oct. 16th

Simplify: (Practice B evens)

1.)

2.) )25)(25(

)24)(2(

ii

ii

3.)

4.)2)2(

)32)(1(2

i

iii

Simplify: (Practice B evens)

Solve the equation

1.)

2.)

362 x

56403 22 xx

Solve the equation3.) 10)3(5 2 x

Practice B (evens): Write the expression as a complex number in standard form.

i23

5

1.)

2.)

i

i

7

34

Practice B (evens): Write the expression as a complex number in standard form.

3.)

i

i

2

21