Cube Roots of 1 in Polar Form: Stephen's Question

In summary, the cube root of 1 in polar form is always equal to 1. This is because when we represent 1 in polar form, it is already in its simplest form with a magnitude of 1 and an angle of 0 degrees. When we take the cube root of this, the magnitude will remain 1 and the angle will remain 0 degrees, resulting in the same value of 1. Therefore, the cube root of 1 in polar form cannot have a different value.
  • #1
salistoun
14
0
Hi all,

There is a question that asks? Determine the cube roots of 1 in polar form?

Does that mean I can use De Moirve Formula?

Stephen
 
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  • #2
You can always use Do Moivre's formula. Polar form just makes it easier to use.
 
  • #3
thx Muprid
 

Related to Cube Roots of 1 in Polar Form: Stephen's Question

1. What is the cube root of 1 in polar form?

The cube root of 1 in polar form is 1 because when we represent 1 in polar form, it is simply 1(cos 0 + isin 0). When we take the cube root of this, we get 1(cos 0 + isin 0) which is still equal to 1.

2. Can you explain how to find the cube root of 1 in polar form?

To find the cube root of 1 in polar form, we can use the polar form of complex numbers which is r(cos θ + isin θ). Since 1 is already in polar form, we can simply apply the cube root operation to the magnitude r, which results in 1, and keep the angle θ the same. Therefore, the cube root of 1 in polar form is 1(cos 0 + isin 0).

3. Why is the cube root of 1 in polar form always equal to 1?

The cube root of 1 in polar form is always equal to 1 because in polar form, 1 is represented as 1(cos 0 + isin 0). When we take the cube root of this, we get 1(cos 0 + isin 0) which is still equal to 1. This is because when we multiply 1 by itself three times, we get 1 again. Therefore, the cube root of 1 in polar form will always be 1.

4. How do you represent the cube root of 1 in polar form on the complex plane?

The cube root of 1 in polar form is represented on the complex plane as a point at the origin, since it has a magnitude of 1 and an angle of 0 degrees. This means that the point lies on the positive real axis, which is also known as the polar axis. This point is the same as the point (1,0) in rectangular form.

5. Can the cube root of 1 in polar form have a different value?

No, the cube root of 1 in polar form will always have a value of 1. This is because when we represent 1 in polar form, it is already in its simplest form with a magnitude of 1 and an angle of 0 degrees. When we take the cube root of this, the magnitude will remain 1 and the angle will remain 0 degrees, resulting in the same value of 1. Therefore, the cube root of 1 in polar form cannot have a different value.

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