Question

Помогите пожалуйста))

Answer 1

$frac{4*3^{1/2} }{ 3^{1/2}*(1- 3^{1/2} ) }= frac{4}{ 1-3^{1/2} }$

$frac{ a^{1/2} - b^{1/2} }{ (a^{1/2})^{2}-(b^{1/2})^{2} }= frac{a^{1/2} - b^{1/2}}{(a^{1/2} - b^{1/2})(a^{1/2} + b^{1/2})} = frac{1}{a^{1/2} + b^{1/2}}$