Question Number 227286 by hardmath last updated on 12/Jan/26
$$\mathrm{tg}\left(\mathrm{4}\right)\:+\:\mathrm{ctg}\left(\mathrm{4}\right)\:=\:? \\ $$
Answered by Frix last updated on 12/Jan/26
$$=\frac{\mathrm{2}}{\mathrm{sin}\:\mathrm{8}} \\ $$