tan is really sin/cos and cot is really cos/sin so just put what they really mean in their place to make it ----> sin 0/cos 0 + cos0/sin 0 = sec 0 csc 0 then sec 0 is really 1/sin 0 and csc 0 is really 1/cos 0 so you just sove by cross multiply and multiply bottom together to get sin^2 0 + cos^2 0/sin 0 cos 0 then simplify to get 1/sin 0 cos 0 which is really 1/sin 0 1/cos 0 = sec 0 csc 0. ㄒɦĄŊĸ ĦØφĒ ĮŤ ɧėŁP ♡✧♡
