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hola,,, question... can I use the rational root test to proof that the cubic root of 2 and square root 3 are irrationals?
 2 years ago
 2 years ago
hola,,, question... can I use the rational root test to proof that the cubic root of 2 and square root 3 are irrationals?
 2 years ago
 2 years ago

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satellite73Best ResponseYou've already chosen the best response.1
sure if you consider the polynomial \[x^32\] the rational roots can only be \[\pm 1,\pm2\] and by inspection neither of those work.
 2 years ago

anilorapBest ResponseYou've already chosen the best response.0
cool.. yea i did that... thanks satellite
 2 years ago

satellite73Best ResponseYou've already chosen the best response.1
i guess if you want a real proof you have to know that the root exists, but that is clear because this is a continuous function that takes on both positive and negative values
 2 years ago

anilorapBest ResponseYou've already chosen the best response.0
they are really asking me prove in detail
 2 years ago

anilorapBest ResponseYou've already chosen the best response.0
what u mean the root exist?
 2 years ago
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