Write the points of discontinuity for the function `f(x)=[x],-3ltxlt3`

The function f(x)=x^(3)-3x is :

The points of discontinuity of f(x) = tan((pix)/(x+1))

Find all the points of discontinuity on f defined by f(x)=|x|-|x+1|

Define a continuity of a function at a point. Find all the points of discontinuity of f defined by f(x) = |x| - |x - 1| .

The domain of the function f(x) = tan 3x is

Find all points of discontinuity of f, where f is defined by f(x)={(2x+3"," ,"if" xle2),(2x-3",","if "xgt2):}