3XW00XW30WW000WV90500TW3=0y=0-5W500-9000E0-日505P35020入00W0-E00o0上x+y=200;y=150. m2/5:5/9= x=(25)/3;y=-3/2. 0++3W(x-100)/(x+2) 上P1.55/8g 0090fx=2x+2y+8=0;fy=6y-8. 0506:5/3 Y7O!∫_0^(2π)p/((t)) f(5/2) F08x=1;5;5. 2x+3y=3;2x+3y...