Подстановка условия
[src]sqrt(x - 2*sqrt(x - 1*1)) + sqrt(x + 2*sqrt(x - 1*1)) при x = -3
_________________ _________________
/ _______ / _______
\/ x - 2*\/ x - 1 + \/ x + 2*\/ x - 1
$$\sqrt{x - 2 \sqrt{x - 1}} + \sqrt{x + 2 \sqrt{x - 1}}$$
__________________ __________________
/ ________ / ________
\/ x - 2*\/ -1 + x + \/ x + 2*\/ -1 + x
$$\sqrt{x - 2 \sqrt{x - 1}} + \sqrt{x + 2 \sqrt{x - 1}}$$
________________________ ________________________
/ ___________ / ___________
\/ (-3) - 2*\/ -1 + (-3) + \/ (-3) + 2*\/ -1 + (-3)
$$\sqrt{(-3) - 2 \sqrt{(-3) - 1}} + \sqrt{(-3) + 2 \sqrt{(-3) - 1}}$$
___________________ ___________________
/ ________ / ________
\/ -3 - 2*\/ -1 - 3 + \/ -3 + 2*\/ -1 - 3
$$\sqrt{-3 - 2 \sqrt{-3 - 1}} + \sqrt{-3 + 2 \sqrt{-3 - 1}}$$