Which of the following functions fhas/have a removable discontinuity at the indicated point ? `f(x)=(x^2-2x-8)/(x+2)` at `x=-2`

Which of the following function(s) not defined at x=0 has/have non-removable discontinuity atthe point x=0?f(x)=(1)/(1+2^((1)/(x)))

Which of the following function (s) has removable type of discontinuity at x=0?f(x)=(1-sec^(2)2x)/(4x^(2))

Which of the following functions f has a removable discontinuity at x=x_(0) ? If the discontinuity is removable, find a function g that agrees with f for xnex_(0) and is continuous on RR . f(x)=(x^(2)-2x-8)/(x+2),x_(0)=-2

Find the points of discontinuity of the function: f(x)=1/(x^2-2|x|+2)