Efectuatii: a) [tex] \frac{a}{b} [/tex] + [tex] \frac{b}{a} [/tex]
b) [tex] \frac{6}{xy} [/tex] + [tex] \frac{2}{x} [/tex]
Ajutatima va rog dau coroana


Răspuns :

[tex] \frac{a}{b} + \frac{b}{a} = [/tex]
aducem la acelasi numitor si avem:
[tex] \frac{ a^{2}+ b^{2} }{a*b} [/tex]

[tex] \frac{6}{2xy}+ \frac{2}{x} = [/tex]
[tex] \frac{6+2y}{xy} [/tex]