21. y = (1/2) x^2 csc 2/x 22. y = 2√x sin √x23. y = x^(-1/2) sec (2x)^224. y = √x csc (x + 1)^3

Chapter3 Ex21-24
數學系卡安很閒 所以決定拯救沒辦法用slader和chegg的莘莘學子
Derivatives of Functions
Find the derivatives of the functions in Exercises 1–64.
21. y = (1/2) x^2 csc 2/x
22. y = 2√x sin √x
23. y = x^(-1/2) sec (2x)^2
24. y = √x csc (x + 1)^3