Quadratic Real Roots (1 Viewer)

Beaconite · Aug 20, 2012

You sure it is in the syllabus?

Fus Ro Dah · Aug 21, 2012

Beaconite said:
You sure it is in the syllabus?

Can be done by a smart 2 unit Mathematics student.

Beaconite · Aug 21, 2012

I do general, sorry

Sy123 · Aug 21, 2012

Could you explain the last line of the question?

Beaconite · Aug 21, 2012

Sy123 said:
Could you explain the last line of the question?

Thats what i dont get

Sy123 · Aug 21, 2012

Does it read that all of a_i are real numbers and i is the element of the set from 1 to n+1 ?

Fus Ro Dah · Aug 21, 2012

Sy123 said:
Does it read that all of a_i are real numbers and i is the element of the set from 1 to n+1 ?

$1\leq i \leq n+1 $ and $ i \in \mathbb{N}$

Carrotsticks · Aug 21, 2012

Re: The Nonsense Thread

Hint: Use the discriminant.

Sy123 · Aug 21, 2012

Re: The Nonsense Thread

That is pretty obvious carrot, what should my answer look like, in terms of a?

Carrotsticks · Aug 21, 2012

Re: The Nonsense Thread

$\Delta = \sum_{k=1}^{n} (2a_k - a_{n+1})^2 - (n-4)a_{n+1}^2$

asianese · Aug 29, 2012

Is that the answer carrot? How to solve?

Carrotsticks · Aug 29, 2012

That was a clue.