If f(x)={sin xx+cos x,when x≠02,when x=0 then
Let f(x)={x+1,ifx>0x−1,ifx<0 Prove that limx→0 f(x)does not exist.
Let f(x)={x+5,ifx>0x−4,ifx<0 Prove that limx→0 f(x) does not exist.