Current location - Training Enrollment Network - Mathematics courses - Answers after class in the sixth edition of advanced mathematics
Answers after class in the sixth edition of advanced mathematics
The previous contents and examples have explained the determination method of integral order and integral limit. Here, after integrating x and y, the range of y is determined. Take a little Y on the table and make it a parallel to the X axis. From left to right, it first intersects with parabola and then intersects with straight line, so the value range of x is y 2 to y+2.

Someone summed up the formula: first set a limit for the posterior product, draw a line within the limit, take the lower limit first, and then see the upper limit.