Question

help me
номер 32.22 (2,4,6)

Answer 1

$2) {( \frac{x}{y} - \frac{y}{x}) }^{2} \\ 4) {( \frac{a}{2b} + \frac{2b}{a}) }^{2} \\ 6) {( \frac{3x}{2y} - \frac{1}{3x} )}^{2}$