Find all points of discontinuity of f, where f is defined by`f(x)={x/(|x|), ifx<0 ,
-1, ifxgeq0`

Find all points of discontinuity of f,where fis defined by xf(x)={(x)/(|x|), if x =0

Find all points of discontinuity of f, where f is defined by f(x)={{:(x/(|x|), ifx<0),( 1, ifxgeq0):}

Find all points of discontinuity of f, where f is defined by f(x)={2x+3,quad if x 2

Find all points of discontinuity of f, where f is defined by f(x)={(x/|x|","ifxlt0),(-1","ifxge0):}

Find all points of discontinuity of f, where f is defined by f(x)={{:((|x|)/x , ifx!=0),( 0, ifx=0):}

Find all points of discontinuity of f, where f is defined by f(x)={{:((x)/(|x|)," if "x lt0),(-1," if "x ge 0):}

Find all points of discontinuity of f, where f is defined by f(x)={{:((x)/(|x|)," if "x lt0),(-1," if "x ge 0):}