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1、2 s -sx+- avaz.(xaavaa ava ea o(28) QQQ . sa a o ,s/a u.3ou seaan+,eaac xo .A .2A .IB. -2B .2C.2iC. 3D. -2iD. 4A .-ISB .ISC.-20D.20A .5B. 42D.1 min/minA .2B.3C. 6D.97.O10 I(x)=2,f (x)I(x), mn=16tin,n K R+) , I(in)+I(n)A .-2B .I8.C.4D.10C .8 l ,mnD.8 nA .7B. 3C.4D. 3 12.y=5j8 + Iz. sa +xax s a.is e.
2、ssz.neas( I )sin A;PA=PD=( I )EF/WI PAD2 ba6.C Jİfi 3 G x=y=O,f(0+0)=f(0)=f(0)+f(0). f(0)=0R x=1,y=-1,f(-1)=f(0)=f(I)+f(-1)-2W . f(-1)=0f(-2)=f(-I -1)=f(-1)+I(-1)+2=2f(-3)=f(- I)+f(-2)+4=6I(in)+I(n)=loz2 +log2=log(mn)-6=logl6-6-6=-28 B #in b=2ain=AB -babm+ l2m- l2293:x. e= =. x- y = 19314. .f()=2=4.
3、a;=2_ 10(a +2 =5(a i +a i +9d)=-6 . sin A=siii (B+C)=sin Bcos C+cos Bsin C10210sin Asin Bsin B22 BC=3.cos C= . P(AB+AB)= P(A)P(B)+P(A)P(B)- . P( L =k)= Ck ( 2 ) (l4(k=0,1,2,3 ,4). EF/PADIAD. CDV PA2O PA = PD= = 221 EF= PA=a1EM=- CD= a222tan MEMF=2. PA =PD. PO 1AD. POT ABCD. PA =PD=j,D( 2AD. . PA A PD,OP=OA= 2,B( 2,0,0).F(0, =(0.2 . EF/T PAD. ( lJ ) . PA,0.-LCD= 2 (0,a,0)=0,a- x+022a x+a y+0 z=0,n =(1,1, I) .8 103xx 208 1 0 E3x+x 8lml y=f1x)% b-L y=8 %sb 2_ b+c472 22ba +2a 2b2t 2 a2b2 t 2y=tIbt 22a c2a c22a-c-2b. -c+2b222kab2a2bb3 ka+b2 ka+b2z b2b