1. By de Moivre's theorem,
2. First write the given number in exponential/trigonometric form.
has modulus
and since it lies in the second quadrant of the complex plane, its argument is
So, we have
Now we apply de Moivre's theorem again, and make sure to account for the multivalued-ness of the exponential function. For , the fifth roots of are
<em>Answer:</em>
<em>x = 1</em>
<em>Step-by-step explanation:</em>
<em>(4 + 9 + 3 + 2 + x + 5)/6 = 4</em>
<em>(4 + 9 + 3 + 2 + x + 5) = 6×4</em>
<em>(4 + 9 + 3 + 2 + x + 5) = 24</em>
<em>x = 24 - (4 + 9 + 3 + 2 + 5)</em>
<em>x = 24 - 23</em>
<em>x = 1</em>
Answer:
670,000
Step-by-step explanation:
5 or more, raise the score.
4 or less, let it rest.
5 rounds 0 up to 1
672,910
1 doesn't change the 9
672,900
9 rounds 2 up to 3
673,000
3 doesn't change the 7
670,000
Answer:
Step-by-step explanation:
The independent variable always goes on the x-axis, or the horizontal axis. The dependent variable goes on the y-axis, or vertical axis. Here's an example: As you can see, this is a graph showing how the number of hours a student studies affects the score she got on an exam