Maths Help Roots of Complex Numbers (1 Viewer)

Lith_30

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Q10 part d and Q11 part d, I am kinda confused as to what to do.
1635806850698.png
 

5uckerberg

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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

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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.





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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.
 

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