Подстановка условия
[src]
sqrt(x - 6*sqrt(x - 1*9)) + sqrt(x + 6*sqrt(x - 1*9)) при x = 3/2
_________________ _________________
/ _______ / _______
\/ x - 6*\/ x - 9 + \/ x + 6*\/ x - 9
$$\sqrt{x - 6 \sqrt{x - 9}} + \sqrt{x + 6 \sqrt{x - 9}}$$
__________________ __________________
/ ________ / ________
\/ x - 6*\/ -9 + x + \/ x + 6*\/ -9 + x
$$\sqrt{x - 6 \sqrt{x - 9}} + \sqrt{x + 6 \sqrt{x - 9}}$$
$$x = \frac{3}{2}$$
__________________________ __________________________
/ ____________ / ____________
\/ (3/2) - 6*\/ -9 + (3/2) + \/ (3/2) + 6*\/ -9 + (3/2)
$$\sqrt{(3/2) - 6 \sqrt{(3/2) - 9}} + \sqrt{(3/2) + 6 \sqrt{(3/2) - 9}}$$
____________________ ____________________
/ 3 __________ / 3 __________
/ - - 6*\/ -9 + 3/2 + / - + 6*\/ -9 + 3/2
\/ 2 \/ 2
$$\sqrt{\frac{3}{2} - 6 \sqrt{-9 + \frac{3}{2}}} + \sqrt{\frac{3}{2} + 6 \sqrt{-9 + \frac{3}{2}}}$$
________________ ________________
/ 3 ____ / 3 ____
/ - - 3*I*\/ 30 + / - + 3*I*\/ 30
\/ 2 \/ 2
$$\sqrt{\frac{3}{2} - 3 \sqrt{30} i} + \sqrt{\frac{3}{2} + 3 \sqrt{30} i}$$
sqrt(3/2 - 3*i*sqrt(30)) + sqrt(3/2 + 3*i*sqrt(30))