Question

check whether (root3+2)square is rational or not​

Answer 1

Answer:

yah it is rational numner

Answer 2

Answer:

${ (\sqrt{3} + 2)}^{2} = { \sqrt{3} }^{2} + 2 \times \sqrt{3} \times 2 + {2 }^{2} \\ = 3 + 4 \sqrt{3} + 4 \\ = 7 + 4 \sqrt{3}$

7+4√3 is not a rational no.