Question

二次根式计算题,分母有理化X/(200+X) =根号3/3

Answer 1

X/(200+X) =根号3/3

1-X/(200+X) =1-根号3/3

200/(200+X) =1-根号3/3

(200+X) =200/(1-根号3/3 )

x=200-200/(1-根号3/3 )=200-600/(3-根号3)=200-100*(3+根号3)=-100-100*根号3