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# FP1 Series (Edexcel text book quesiton) watch

1. Hi, I am stuck on part c of question 8 in my textbook, how do I show it equals the equation?

I have uploaded what I'v done so far.

Any help would be appreciated
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2. (Original post by ben789)
Hi, I am stuck on part c of question 8 in my textbook, how do I show it equals the equation?

I have uploaded what I'v done so far.

Any help would be appreciated
Hmmmmmmm

There doesn't seem much to do

The first sum is all the cubes upto (2n)^3
The second sum is all the even numbers cubed upto (2n)^3

Take the evens from them all and you will be left with the odds
3. (Original post by TenOfThem)
Hmmmmmmm

There doesn't seem much to do

The first sum is all the cubes upto (2n)^3
The second sum is all the even numbers cubed upto (2n)^3

Take the evens from them all and you will be left with the odds
Got it now, thanks

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