Question

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

Answer 1

sure if you consider the polynomial
\[x^3-2\] the rational roots can only be
\[\pm 1,\pm2\] and by inspection neither of those work.

Answer 2

cool.. yea i did that... thanks satellite

Answer 3

yw

Answer 4

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

Answer 5

waitt

Answer 6

they are really asking me prove in detail

Answer 7

what u mean the root exist?