Let f (x) = e * X The * on the E * should be replaced by * if x can't be typed

Let f (x) = e * X The * on the E * should be replaced by * if x can't be typed

Left limit = limex (x → 0) = 0
Right limit = a + 0 = a
According to the meaning of the title, left limit = right limit, so
a=0