Question

the number(2- √3)^2 is
a) irrational number
b) rational number

with steps●●● ​

Answer 1

Step-by-step explanation:

Firstly, we evaluate,

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

$\color{blue} {This \: is\:Irrational \:number}$