. (C) Find all the focal points of /, while / as follows Defined by: +1, remember x21 1x +1, if x <1

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

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

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

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

Find all the points of discontinuity, where f is defined by f(x) = {{:(x + 1"," , " if " x ge 1),(x^2 + 1 ",", "if " x lt 1 ):}

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

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