Question

Помогите пожалуйста!!!!! Срочно надо

Answer 1

$3)\; \; 4a^2b:\frac{16ab^2}{2x^2y}=\frac{4a^2b\cdot 2x^2y}{16ab^2}=\frac{ax^2y}{2b}\\\\2)\; \; \frac{30a^3b^2}{6x^2y^2}:15a^2b^2=\frac{30a^3b^2}{6x^2y^2\cdot 15a^2b^2}=\frac{2a}{6x^2y^2}=\frac{a}{3x^2y^2}\\\\4)\; \; \frac{a^{t+k}b^{k+q}}{x^{k+q}y^{q+k}}: \frac{a^{k-q}b^{q-t}}{x^{k-q}y^{t+k}}=\frac{a^{t+k}b^{k+q}}{x^{k+q}y^{q+k}}\cdot \frac{x^{k-q}y^{t+k}}{a^{k-q}b^{q-t}}=\\\\=a^{t+q}\cdot b^{k+t}\cdot x^{-2q}\cdot y^{t-q}=\frac{a^{t+q}\; b^{k+t}}{x^{2q}\; y^{q-t}}$

Answer 2

Ответ:......................