Ответы и объяснения

2013-05-02T17:29:07+04:00

a/c+(a-c)/a-(a^2-c^2)/(ac)=a/c+a/a-c/a-(a^2-c^2)/(a*c)=a/c+1-c/a-(a^2-c^2)/(a*c)=a/c+1-c/a-(a^2-c^2)/a/c=a/c+1-c/a-(a^2/a-c^2/a)/c=a/c+1-c/a-(a-c^2/a)/c=a/c+1-c/a-(a/c-c^2/a/c)=a/c+1-c/a-(a/c-c/a)=a/c+1-c/a-a/c+c/a=1-c/a+c/a=1