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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 10,542

KerimF:

18th November 2023

May I add... as an extended exercise...

Prove that, for any value of k, the roots, x1 and x2, of the equation kx^2 + x + k = 0 satisfy x1=1/x2.

moved by Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Sometimes I deliberately make mistakes, just to test you! …………….Bob

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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 10,542

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Sometimes I deliberately make mistakes, just to test you! …………….Bob

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Pages: **1**