( Thdi gian 120 phrit 11 i- |. !, (utit) i-:34 'l I : .i i L r v I cAu t: (l.oo airlm r Tinh tich ph6n I : {{Zrl, - x - y,)ctx + (xy - x + y)dy (q) le duong ton F n-y''& 2u* (a > o) . Bing hai phuong ph6p: a) Trgc tii3p. b) Sri dqng c6ng thftc Green;.* I cAU tt: rz eicm) Tich phdn mdt: l= [[x':ayat -2xydzdx +3xzdxgl ,s S li phia ngoiri mdt ciu *'* y' + z2 = 4 cAu tu: r:.oo ai+imr l) Cho hdm s6 .f (z) =t:g!: a) Tinh ne.r{'/tr). o} .*,; '9#,ql:-1t9.+9j4h!qshiq,3gt qz)]ry?f:gai f(AglrggsbJ{eutpe!-srar, hiir}s****-==* pRuc. f di6m bAt thuong vd tinh th4ng du tai tti€m bdt thuong tuong ung 2) Phdn lo4i di6m bAt thuong vd tinh thdns du tai tti€m bdt thuims rrrcynrr rino ' cta him f(z) sau day: f (z) = t' -?z-+1 tai z= 3 5 z_3 cAu tv: (_z.oo aiemr ' ,4 l. Tinh th4ng du cua c6c hirm f(z): a;i, rai cilc dii-lm bdt thuong khong k6 * . 2)rinh1= { +. ,",12 +l r._ +.1 =i JnaJ o * F t'. ie- I I t t &;- f'*\- l' L", t I I r t ts' I I I ti I [7 tra{ . gian 120 phrit 11 i- |. !, (utit) i- :34 'l I : .i i L r v I cAu t: (l.oo airlm r Tinh tich ph6n I : {{Zrl, - x - y,)ctx + (xy - x + y)dy (q) le duong ton F n-y''&. hirm f(z): a;i, rai cilc dii-lm bdt thuong khong k6 * . 2) rinh1= { +. ,", 12 +l r._ +.1 =i JnaJ o * F t'. ie- I I t t & ;- f'* - l' L", t I I r t ts' I I I ti I [7 tra{ . + z2 = 4 cAu tu: r:.oo ai+imr l) Cho hdm s6 .f (z) =t:g!: a) Tinh ne.r{'/tr). o} .*,; '9#,ql :-1 t9.+9j4h!qshiq,3gt qz)]ry?f:gai f(AglrggsbJ{eutpe!-srar, hiir}s*** *-= =* pRuc. f