Complex And Imaginary Numbers Flashcards
1
Q
What does i represent?
A
Imaginary numbers (the square root of a negative number).
2
Q
How is i defined?
A
i is defined as the square root of negative one, and is used as a variable with the number multiplied by it.
3
Q
Is i² imaginary?
A
No, it is equivalent to -1
4
Q
How do you find i to any power?
A
To find i to any power you have to “simplify”, dividing the exponent by 4, because i⁴ is 1, then the remainder is the exponent you use to find the answer.
5
Q
i = ?
A
sqrt -1
6
Q
i² = ?
A
-1
7
Q
i³ = ?
A
-i
8
Q
i⁴ = ?
A
1
9
Q
sqrt -2 = ?
A
± i sqrt2
10
Q
sqrt -4 = ?
A
±2i
