Cscx is generally a trigonometric function encountered in high school, but it is not the focus of high school, but it is one of the key functions to be mastered in college mathematics. To do such a function problem, we can use the basic trigonometric function to derive such a complex function.

derivant

Is a local property of a function. The derivative of a function at a certain point describes the rate of change of the function near that point. If the independent variables and values of the function are real numbers, then the derivative of the function at a certain point is the tangent slope of the curve represented by the function at that point. The essence of derivative is the local linear approximation of function through the concept of limit. For example, in kinematics, the derivative of the displacement of an object with respect to time is the instantaneous velocity of the object.