Matematika A - 2022. jesen, 3.

A. $\frac{x}{y}+\frac{y}{x}=1\backslash frac\{x\}\{y\}+\backslash frac\{y\}\{x\}=1$

B. $\frac{x}{y}-\frac{y}{x}=-1\backslash frac\{x\}\{y\}-\backslash frac\{y\}\{x\}=-1$

C. $\frac{x}{y}\cdot \frac{y}{x}=1\backslash frac\{x\}\{y\}\; \backslash cdot\; \backslash frac\{y\}\{x\}=1$

D. $\frac{x}{y}:\frac{y}{x}=-1\backslash frac\{x\}\{y\}:\; \backslash frac\{y\}\{x\}=-1$