Question

simplifique a expressao v93 sobre21-v21sobre 93

Answer 1

\/(93/21) - \/(21/93) = 

\/31/7) - \/(7/31) = 

\/31/\/7 - \/7/\/31

mmc \/7 e \/31 = \/7 x \/31

 

[(\/31)² - (\/7)²] / \/7x\/31 = 

(31-7)/ \/217 = 

24/ \/217 = 24\/217/217