Complex Numbers

Convert to Complex

100

sqrt(-100)

What is 

10i

200

sqrt(-5)

What is

isqrt(5) or sqrt(5)i

300

-sqrt(-49)

What is

-7i

400

sqrt(-8)

What is

2isqrt(2) or 2sqrt(2)i

500

sqrt(-100)/-sqrt(4)

What is

-5i

Addition

100

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

What is

5-3i

200

(-4+3i)+(2-12i)

What is

-2-9i

300

(4-3i)+(-2+5i)

What is

2+2i

400

(4+sqrt(-25))+(6-sqrt(-16))

What is

10+i

500

(5+sqrt(-36))+(2-sqrt(-49))

What is

7-i

Subtraction

100

(9+5i)-(2+3i)

What is

7+2i

200

(7-4i)-(5-3i)

What is

2-i

300

(-5-i)-(7+4i)

What is

-12-5i

400

(9-7i)-(3-8i)

What is

6+i

500

(3+sqrt(-16))-(-2-sqrt(-100))

What is

5+14i

Multiplication

100

5i * 8i

What is -40

200

11i(2 + 5i)

−55 + 22i

300

(1+i)(3+2i)

What is

1+5i

400

(3+8i)(3-8i)

What is 73

500

(2+3i)^2

What is

-5+12i

Random

100

What is i^3 equivalent to?

What is

-i

200

x^(3/2)+5=32

What is 9

300

(2x+6)^(2/3)=36

What is 105

400

2x^2 - 4 = 10

What is

+- root  7

500

What is the sum of 4 − 7i and the conjugate of 2 + 3i?

6 − 10i