Posted by bishenka| Posted at Jan 02, 2014 | Categories:
Математика
Answers
Puet49
a+1/a+(a-1)/[a(x-1)]
a≠0,x≠1
a²(x-1)=x-1+a-1
a²x-a²-x-a+2=0
x(a²-1)=a²+a-2
x=(a+a-2)/(a²-1)
x=(a+2)(a-1)/[(a-1)(a+1)]
x=(a+2)/(a+1),a≠+-1
Ответ при а≠0 и а≠+-1 х=(а+2)/(а+1)
a+1/a+(a-1)/[a(x-1)] a≠0,x≠1 a²(x-1)=x-1+a-1 a²x-a²-x-a+2=0 x(a²-1)=a²+a-2 x=(a+a-2)/(a²-1) x=(a+2)(a-1)/[(a-1)(a+1)] x=(a+2)/(a+1),a≠+-1 Ответ при а≠0 и а≠+-1 х=(а+2)/(а+1)