Answers

2014-11-14T15:07:54+05:30
100000000000000..........1/100000000000000..........
I hope this might be, because x can be considered as anything.  And there is no end for numbers.  
0
2014-11-14T18:13:55+05:30
X+1/x=> x²+1
              x
this is now undefined as the value of x is unknown.therefore the value of this expression may change according to the value given to the variable

0