I'm not sure what you are asking. The value of "y" could be just about anything.Originally Posted by gary1
I'm really stuck on this question, and would be incredibly grateful if anyone could help me:
^ = the square root
^5 + y = a rational number (ie a number which can be written as a/b)
can anybody find a value for y?
I'm not sure what you are asking. The value of "y" could be just about anything.Originally Posted by gary1
Pope of the Dictionary.com Forum
[Summing a rational number (y) to an irrational one you always obtain
an irrational number. So the only way y is rational is that a is equal to b or an his multiple. for example ^5 or 2*^5
I was going to say that. <liar>
Originally Posted by tdol
Pope of the Dictionary.com Forum
Teacher Tdol,
You are correct! She/he is a liar!
One cannot solve an equation with two unknowns!
e.g. a + b = 10
if a is equal one, b will be equal to nine,
However, if a is equal to two, b will be equal to eight and so on.
In conclusion, a and b are variables.
I believe you are right, but I think Tdol was joking by calling himself a liar when he said, "I was going to say that."Originally Posted by Hong Kong Chinese
:wink:
Thanks for that, but I was calling myself a liar. If I was right, it was only by accident. If I disagreed with someone's view on the forum,I would try to phrase it more diplomatically.Originally Posted by Hong Kong Chinese