Question Number 160310 by HongKing last updated on 27/Nov/21
$$\mathrm{find}\:\mathrm{the}\:\mathrm{period}\:\mathrm{of}\:\mathrm{the}\:\mathrm{function}: \\ $$$$\mathrm{y}\:=\:\mathrm{tan}\:\frac{\pi\mathrm{x}}{\mathrm{k}}\:+\:\mathrm{cos}\:\frac{\mathrm{2}\pi\mathrm{x}}{\mathrm{k}\:+\:\mathrm{5}} \\ $$
Commented by mr W last updated on 27/Nov/21
$${period}={lcm}\left({k},\:{k}+\mathrm{5}\right) \\ $$