The sine; cosine and (tangent) function is continuous everywhere (on domain).

Show that tangent function is continuous in their domain

The cosecant; secant and cotangent function is continuous in its domain.

Is greatest integer function [x] is continuous everywhere ?

Prove that tangent function is continous in its domain.

Prove that tangent function is continous in its domain.

Which one of the following functions is continuous everywhere in its domain but has atleast one point where it is not differentiable

Which one of the following functions is continuous everywhere in its domain but has atleast one point where it is not differentiable ?

Which one of the following functions is continuous everywhere in its domain but has atleast one point where it is not differentiable ?