:~:8 Maple problem
due : 4/2 10:00~4/3 17:00
don't visit me before 10:00 and after 17:00 and 4/2 12:00~16:00(I have classes..)

The solution consists of 3 parts
1. Estimating positions of intersections of two graphs by plotting.
2. Finding intersections by using fsolve().
3. Calculating area.
Each part has 5 points mainly.

This problem focuses on the fact that fsolve() returns only one solution.
By plotting, You should estimate small region containing one intersection. (-3)
you must find a intersection in each estimated interval. (-4)
In fact, there are 3 intersections. You should consider more than 3 intersections(-1)

You should pay attention to the definition of area. Therefore, you must consider either f>g or f<g or the sign of integration of each interval between intersections.(-3)
You should sum all intergration values. (-1)

Wrong commands, variable name.. (-1).
Missing commands and just explanation (-2)
Ignoring instruction that “Do not use commands other than the commands listed below”
Int(abs..) (–5) (It causes modification of answers)
Abs(int..) (–1) (a trivial case)

Some unique answers and cases are scored individually.
Before you come to me, please check your answers with Maple.