Imaginary & Complex Numbers

Solve / Simplify

100

sqrt (-1) =

i

200

sqrt (-36)=

6i   and -6i

300

x^2+4=0

2i  and -2i

400

x^2 + 12 = 0

2 i sqrt(3) and -2 i sqrt(3)

Adding/Subtracting Complex Numbers

100

(2 + 3i) + (4 + 7i)

6 + 10i

200

(5 + 6i) + (4 - 2i)

9 + 4i

300

(6 + 5i) - (3 + 2i)

3 + 3i

400

(2  -7i) - (1 - 4i)

1 - 3i

Multiplying Complex Numbers

100

(3 + 2i)(5 - i)

17+7i

200

(6 + 2i)(6 - 2i)

40

300

(2 + 3i)(4 + 7i)

-13 + 26i

400

Final Jeopardy

(2+6i)+(2-4i)+(2-5i)=

6-3i

Dividing Complex Numbers

100

(13)/(5-i)

2.5+.5i

200

(5+3i)/(2-2i)

.5+2i

300

1/(2+i)

.4-.2i

400

(-6)/i

6i

Miscellaneous

100

A complex number has two parts name each

a real number and an imaginary number

200

identify the real number part of the complex number 6 + 7i 

6

300

identify the imaginary number part of the complex number 6 + 7i

7i

400

Daily Double

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