find the points of discontinuity of the function f defined by
`f(x) = {(|x|/x, x ne 0),(0,x=0):}`

find the points of discontinuity of the function f defined by f(x) = {(4x+1,x 0):}

find the points of discontinuity of the function f defined by f(x) = {(sinx/x,x<0),(x+1,xge0):}

find the points of discontinuity of the function f defined by f(x) = {(x^3 - 3, x le 2),(x^2 + 1, x > 2):}

find the points of discontinuity of the function f defined by f(x)=frac(3x+7)(x^2-5x+6

Examine continuity of the function f defined by. f(x) =|x-5|

Examine continuity of the function f defined by. f(x)=x-5

Find the domain and range of the real function f defined by f(x)=|x-1|

Examine continuity at the given point of the function f defined by f(x)={(-2,xlt0),(0,x=0,),(2,xgt0,at x =0):}

Find the domain and range of the real functions f defined by f(x)=sqrt (x-1) .