| 1 | |
x <= y <= √x | |
| 2 |
0∫4[y=(1/2)x∫y=√x (x+y2)dy]dx=
| 1 | ||
= 0∫4([xy+ | y3}](1/2)x√x) dx= | |
| 3 |
| 4 | x2 | x3 | ||||
=0∫4( | x3/2− | − | ) dx= | |||
| 3 | 2 | 24 |
| 8 | x3 | x4 | 56 | |||||
=[ | x5/2− | − | ]04= | |||||
| 15 | 6 | 24*4 | 15 |
| 8 | 43 | 44 | |||
*√45− | − | −0= | |||
| 15 | 6 | 24*4 |
| 8 | 64 | 16 | 8*32 | 40 | 256 | 200 | |||||||
*32− | − | = | − | = | − | = | |||||||
| 15 | 6 | 6 | 15 | 3 | 15 | 15 |
| 56 | ||
= | ||
| 15 |