在樓下超商遇到了天菜正妹,要了LINE之後她說了「這句話」讓他瞬間從天堂掉到地獄!
Please help me prove sec x cosec x - cot x = tan x . thank you. | eNotes 翻拍自dcard(下同) 昨天發生了我人生有史以來最重要的事... 早上一如往常去租屋處樓下的小7買早餐,結帳的時候發現是新來的正妹店員,身高大概150左右小小的,臉超級可愛的那種,讓我看得心癢癢(OwO)因為實在是太可愛了,完全是我的菜,所以中午故意又去了小7買個午餐Get an answer for 'Please help me prove sec x cosec x - cot x = tan x . thank you.' and find homework help for other Math questions at eNotes ... secx * cosecx - cotx = tanx We know that: secx = 1/cosx csecx = 1/sinx cot = cosx/sinx tanx = sinx/cosx Now ....
全文閱讀