How do I start the last part of this question?

[Kulla_9289]

hello,
I have done the first 3 parts but got stuck at the last part (hence).
For case n=1, ∑a= α + β + γ = 7/6. For case n=2, ∑a^2 = 13/36. The third part (Deduce) is 73/216. I have my working in my notebook so don't worry about it. But I am stuck at the last part with hence. How do I start?

 

[blamocur]

[math]\frac{qr}{p^2} + \frac{pr}{q^2} + \frac{pq}{r^2} = \frac{pqr}{p^3} + \frac{pqr}{q^3} + \frac{pqr}{r^3}[/math]

 

[Kulla_9289]

can be rewritten in summation form. summation(pqr/p^3). Then what?

 

[blamocur]

can be rewritten in summation form. summation(pqr/p^3). Then what?

Just give yourself some time.

 

[Kulla_9289]

I am sorry I don't get it.

 

[blamocur]

I am sorry I don't get it.

Do you see how my post is related to yours?