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WHat would be a rational expression for which 7 and 2 are restricted from the domain?

Posted on Apr 28, 2008 under domain news and reports | 5 Comments

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jasoncorndogg Says:
April 28th, 2008 at 10:52 am
x=3…oops, sorry, didn't see rational in there…i thought that seemed a bit easy
bonkti Says:
April 28th, 2008 at 10:52 am
X to the third power /(X-7)(X-2)
Neodiogenes Says:
April 28th, 2008 at 10:52 am
1/((x-7)(x-2)) works just as well.
Philo Says:
April 28th, 2008 at 10:52 am
You just need expressions in the denominator that would be 0 if x=7 or x=2.
example: 17/[(x-7)(x-2)]
Sir Jekshun Says:
April 28th, 2008 at 10:52 am
tan(nPi/2) when n=7
or tan(nPi/4) when n=2
or if you need one expression,
1/[Tan(nPi/2) Tan(nPi/4)].
Remember, tan = sin/cos…