Complex Numbers And Quadratic Equations
Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
1
2
3
4
Check
Across:
1.
Square root of a negative number
4.
Two complex numbers if their sum is real and their product is also real
Down:
2.
A complex number z = x + iy can be represented by a point (x, y) on the plane
3.
A complex number z = x + iy is denoted by
z
=
x
2
+
y
2
4.
A number of the form a + ib, where a and b are real numbers
OK