Answer (-3,1) because the lines are intersecting there.
V=lwh
The height is 2 cubes, the length is 5 cubes, and the width is 3 cubes. Now you can just plug it into the formula.
V=lwh
V= 5x3x2
V=30
Hope this helps!! :)
Answer: true
Explanation:
Answer:
yes its correct
Step-by-step explanation:
good job
We have to evaluate the fourth roots of unity.
For each natural number say 'n', there are exactly 'n' nth roots of unity which is expressed in the form as
where k=0,1,2,.... n-1
Since we have to evaluate the fourth root of unity.
Therefore, we take k=0,1,2,3 and n=4
So, we get
Now, For k=0, we get our first root as:
First root = 1
Now, for k=1, we get
(Eulers Formula)
So,
So, second root = i
Now, for k=2, we get
(Eulers Formula)
So,
Third root = -1
Now, for k=3, we get
(Eulers Formula)
So,
So, fourth root = -i
Hence, all the fourth roots of unity are 1, i, -1 and -i
Therefore, option D is correct as all the given roots in option A, B and C are the fourth roots of unity.