how do you prove that the unction f(x) = tan(x+x^2)/(1+x+x^2) is continuous for all x=[0,1] except at one point.
i found out that it is not cont at x= 0.84936..but i dont know how to prove that it is continuous now..
is an elementary function, for all real and does not exists. Solving you'll obtain the point in where is not continuous:
Edited: Sorry, I didn't see the previous answers.