Question

√(√12-4)²-2√(2-√3)² помогите плз

Answer 1

$sqrt{( sqrt{12} -4)^2} -2sqrt{(2-sqrt3)^2}=|sqrt{12}-4|-2cdot |2-sqrt3|=\\=(4-sqrt{12})-2cdot (2-sqrt3)=4-sqrt{4cdot 3}-4+2sqrt3=\\=-2sqrt3+2sqrt3=0$