Выбери верные ответы

Упрости выражения.

1. \(a^5 \cdot a^4 \cdot a^6 = \) [ \(a^{15}\) | \(a^{120}\) | \(3a^{120}\) | \(3a^{15}\) ].
2. \(((-y)^3)^4 = \) [ \(-y^{7}\) | \(-y^{12}\) | \(y^{12}\) | \(y^7\) ].
3. \(\dfrac{x^7 \cdot x^9}{x^2} = \) [ \(x^{61}\) | \(x^{14}\) | \(x^{8}\) | \(x^{16}\) ].
4. \(\dfrac{(ab)^8}{a^8 \cdot b^7} = \) [ \(ab\) | \(b\) | \((ab)^7\) | \(a\) ].
5. \(\dfrac{x^3\cdot y^{12}}{(xy^{4})^3} = \) [ \(xy^3\) | \(x^2y^8\) | \(xy\) | \(1\) ].