Выбери верные ответы

Выполни умножение алгебраических дробей.

1. \(\dfrac{a^2}{b^4} \cdot \dfrac{b^2}{a}=\) [ \(\frac{b}{a}\) | \(\frac{b^2}{a^2}\) | \(\frac{a}{b^2}\) | \(\frac{a}{b}\) ].
2. \(x^2y^5\cdot \dfrac{y^2z}{y^4z}=\) [ \(x^2y^3\) | \(x^3y^2\) | \(\frac{x^2}{y^3}\) | \(\frac{y^2}{x^3}\) ].
3. \(\dfrac{m^2}{n^3} \cdot \dfrac{n^2}{m}=\) [ \(\frac{n}{m}\) | \(\frac{m}{n}\) | \(\frac{m^2}{n^2}\) | \(\frac{n^2}{m^2}\) ].
4. \(\dfrac{t^5u}{t^3u^3} \cdot t^2u^2=\) [ \(u^4\) | \(t^4\) | \(\frac{t^2}{u^2}\) | \(\frac{u^2}{t^2}\) ].