(-2014又2012分之1)÷(-2013)求过程!

问题描述:

(-2014又2012分之1)÷(-2013)求过程!

解:设2013=x,则2012=x-1,2014=x+1,得 -(x+1)又(x-1)乘x分之一等于-[(x+1)(x-1)]+1/(x-1)X1/x=-(x^2-1+1)/(x-1)X1/x =-(x^2)/(x-1)X1/x =-x/(x-1) =-2013/2012

(-2014又2012分之1)÷(-2013)
=(-2013-2012分之2013)÷(-2013)
=1+2012分之1
=1又2012分之1

(-2014又2012分之1)÷(-2013)
=2014又2012分之1÷2013
=(2013+2013/2012)/2013
=1+1/2012
=1又1/2012

-2014又2012分之1=-(2013+2013/2012),所以最后=1+1/2012=2013/2012