\[\left( \frac{c^{0,5}}{c^{0,5} - d^{0,5}} - \frac{d}{c - c^{0,5}d^{0,5}} \right) \cdot \frac{5c^{1,5}}{c^{0,5} + d^{0,5}} = 5\]
\[1)\ \frac{c^{0,5}}{c^{0,5} - d^{0,5}} - \frac{d}{c - c^{0,5}d^{0,5}} =\]
\[= \frac{{c^{0,5}}^{\backslash c^{0,5}}}{c^{0,5} - d^{0,5}} - \frac{d}{c^{0,5}\left( c^{0,5} - d^{0,5} \right)} =\]
\[= \frac{c - d}{c^{0,5}\left( c^{0,5} - d^{0,5} \right)} =\]
\[= \frac{\left( c^{0,5} + d^{0,5} \right)\left( c^{0,5} - d^{0,5} \right)}{c^{0,5}\left( c^{0,5} - d^{0,5} \right)} =\]
\[= \frac{c^{0,5} + d^{0,5}}{c^{0,5}};\]
\[2)\ \frac{c^{0,5} + d^{0,5}}{c^{0,5}} \cdot \frac{5c^{1,5}}{c^{0,5} + d^{0,5}} = 5.\]