# Maths Help Roots of Complex Numbers (1 Viewer)

#### tickboom

##### Member

• • B1andB2, Life'sHard, Lith_30 and 2 others

#### Lith_30

##### Active Member
• tickboom

#### Lith_30

##### Active Member
What textbook is this, may I ask?
Cambridge Extension 2 Maths 2020

• ExtremelyBoredUser

#### 5uckerberg

##### Well-Known Member
Cambridge Extension 2 Maths 2020
From there we can see that find the values of x in which come from and here we are going to note that we will test this on because from the question we can immediately identify that the value as such it becomes

• Lith_30 and B1andB2

#### ExtremelyBoredUser

##### Bored Uni Student
how do you do 10c?
from the polynomial in (ii), divide all the terms by w^4 and use the fact

Here's the working out just in case;

dividing by the middle term.

as required

Last edited:

#### Alistruggles

##### Member
from the polynomial in (ii), divide all the terms by w^4 and use the fact

Here's the working out just in case;

dividing by the middle term.

as required
neat thanks a bunch!

• ExtremelyBoredUser

#### Lith_30

##### Active Member
from the polynomial in (ii), divide all the terms by w^4 and use the fact

Here's the working out just in case;

dividing by the middle term.

as required
This is more like a cosmetic tip but if you want the brackets to cover the entire fraction use "\left" and "\right", for example "\left(\frac{2\pi}{9}\right)" results in . So yeah, use it if you want to.

• ExtremelyBoredUser

#### ExtremelyBoredUser

##### Bored Uni Student
This is more like a cosmetic tip but if you want the brackets to cover the entire fraction use "\left" and "\right", for example "\left(\frac{2\pi}{9}\right)" results in . So yeah, use it if you want to.
Thanks!

• Lith_30