Complex Numbers

Question 1

Which expression is equivalent to ?

Revolt · Accepted Answer

4 StartRoot 5 EndRoot i

Question 2

Which complex number has a distance of from the origin on the complex plane?

Revolt · Accepted Answer

4 – i

Question 3

Which complex number has an absolute value of 5?

Revolt · Accepted Answer

–3 + 4i

Question 4

If f(x) = 1 – x, which value is equivalent to |f(i)|?

Revolt · Accepted Answer

StartRoot 2 EndRoot

Question 5

If f(x) = x3 – 2x2, which expression is equivalent to f(i)?

Revolt · Accepted Answer

2 – i

Question 6

If the complex number x = 3 + bi and |x|2 = 13, which is a possible value of b?

Revolt · Accepted Answer

2

Question 7

Which expression is equivalent to i 233?

Revolt · Accepted Answer

i

Complex Numbers Answers