Question

Обчислити: √(7+4√3)+√(7-4√3)

Answer 1

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