Prove that p, q and r must be perfect squares.
Ok so the rule for a square is:
So then therefore if you square it which goes to
Where did I go wrong?
Follow Math Help Forum on Facebook and Google+
I think you went wrong in your first step.
If you substitute into you get: and not what you wrote
Another thing is that
it doest equal , where you multiply out the brackets.
Originally Posted by Mukilab Ok so the rule for a square is: Where did you get this? If you plug in , the right hand side yields instead of .
From context it's clear that you mean .
Then it's a matter of proving that if p, q and r are not all perfect squares, then s cannot be rational.
That's the formula for proving the square of a number using the previous number squared.
I don't know if it's a matter of whether p, q and r are perfect squares or not.
Never mind, this question does not apply to me anymore and I have far more tricky questions to get around :P
Originally Posted by Mukilab That's the formula for proving the square of a number using the previous number squared. Well just for reference,
View Tag Cloud