Question

Is the real number √(12.1) rational or irrational

Answer 1

\[√({12.1}) =\sqrt{\frac {11^2}{10}}=\frac{11}{\sqrt {10}}\]

Answer 2

so wats is it

Answer 3

\[\frac{11}{\sqrt{10}}\]\[=\frac {11}{\sqrt{10}}\times\frac {\sqrt{10}}{\sqrt{10}}\]\[=\frac{11}{10}\sqrt {10}\]
\[=\frac {11}{10}\sqrt 2\sqrt 5\]

Answer 4

rational or irrational wat one of those

Answer 5

For it to be rational, you HAVE TO BE ABLE to write it as a quotient of two integers...
can you?

Answer 6

no

Answer 7

Therefore...? :)

Answer 8

irrational

Answer 9

thx

Answer 10

no problem :)