<p>I know its an easy question but i still can't get it:</p>
<p>If rstv=1 and stuv=0 then what is true:
r<1
s<1
t>1/2
u=0
v=0</p>
<p>r has to be a non 0
s has to be a non 0
t has to be a non 0
v has to be a non 0</p>
<p>look at the other one. s,t,v are in there. that leaves u.</p>
<p>it must be 0.</p>
<p>Oh! I feel so stupid now, that was the only one I missed O_o
I knew there was something I am missing (gotta wake up)
Thanks anhtimmy! :)</p>