f(x)={((x)/(2-\\\\sqrt(4+x)) for x!=0 and x>=4),(k for x=0):}

\ Let

f

be the function defined above, where

f

is a constant. For what value of

k

is

f

continuous at

x=0

?

f(x)={24+xxkforx=0andx4forx=0 Let f be the function defined above, where f is a constant. For what value of k is f continuous at x=0