Questions which i am interested in (am i right ?):
http://web2.0calc.com/questions/perms_1
http://web2.0calc.com/questions/perms
Qustions which i don t care :P but wasn t cheked:
http://web2.0calc.com/questions/algebra-help_52143
question which wasn't done from my view:
http://web2.0calc.com/questions/x-is-a-real-number-x-sqrt-x-10-sqrt-x-3-0-x-1-x