f(x) = 1 - cosxx2 ; when x≠0 1 ;when x=0. Show that f(x) is discontinous at x = 0.

$f (x) = \{\begin{cases} \frac{1 - \cos x}{x^{2}}; w h e n x \neq 0 \\ 1; w h e n x = 0 \end{cases}$ . Show that f(x) is discontinous at x = 0.

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.