1、 4,120150.105.22B.305.4.I6012560.11,2,3,4U=1,2,=2,3()UCMNA1,2,3B2C1,3,4D42(3,4)cosA43B34C35D4532,0()1,0 xxf xx(2)ff=A0B1C2D34nannS0,633aS dA1B1C2D27)2(21xxxxfxaaA21B31C3D46xyR0 xyA110 xyBsinsin0 xyC11()()022xyDlnln0 xy524xyxyA161yB161yC161xD161x8yxP,05311yxxyxP01343yxAB2CD19ABCABCabc(ab)2c24C60abA34
2、B34-8C1D3210sinyx21 3 Asin(2)3yxB2sin(2)3yxC1sin()23yxD1sin()26yx11xy42 3BA,ABABC5D12axxxf2121),3,xxxx02121xxxfxfaA3,(B)0,3C3,(D3,0(II904520.13P0,xRxP_14(1,3)C0643yx_1521,FF0,012222babyaxP 022PFOFOPO 2143PFPF_161,0 x 132axxa_70.17-21.2223.60.17(12):p 012mxx:q 012442xmxpqpqm18(12)ABC,A B C,a b c,A B
3、C 3,b ac.19(12)nannS4(*)nnSanN.na21(*)2lognnbnNannbannT.20(12)1223bxaxxxfxf xfy21x01f.abxf21(12)P 0,1F2:xl 22 PE F xE AB nmxyl:E CD AB AB El 122yx ABCDl10.2223.4-422Rba,Rxx21,1ba21212xxbxax211221xxbxaxbxax4-523121xxmxf5m2xf322xxyxfym1C2C3D4C5C 6C 7D8B9A10B11D 12C13xR|x|0149)3()122yx155161,7y=4x2x2=y
4、=y=y=xx=x=7x2x20f(x)(x2)1x222*x21x224x21x2(x2)x3f(x)x3a3.8PA10P3x4y13=0d=B9ab2c24a2b2c22abcos 60abab43A.111:y2=4xF10ABk=tan=ABy=x13x12=4x3x210 x+3=0 Ax1y1Bx2y2x1x2=1|AB|=|x1x2|=D2:221sin2ppxxAB3:12x1x23+x1x20fx=x|xa|3+fx=x|xa|=a3fx=x2axx3+3+a3fxa+afx3+a317p00421mmm2.q01621622m1m3.pqpqpqpq312mmmm3pq3
5、12mm1m2.mm31m2.1218,A B C 3B22sinsinsinabcABC2sin,2sinaA cC2sin2sin2sin2sin()3acACAA332(sincos)2 3sin()226AAA6 ABC 2,62 363AA 83sin()(,162A(3,2 3ac12194nnSa114Sa12a21111(4)(4)nnnnnnnaSSaaaa12nnaa112nnaa4na212.12112()()22nnna 621112log2(2)nnbann221nnnnba8nnbannT2321218nnnnT1220f(x)2x3ax2bx1f(x)6x22ax
6、b.f(x)6(xa62ba26yf(x)xa6a612a3.f(1)062ab0b12.6f(x)2x33x212x1f(x)6x26x126(x1)(x2)f(x)06(x1)(x2)0 x12x21.x(2)f(x)0f(x)(2)x(2,1)f(x)0f(x)(2,1)x(1)f(x)0f(x)(1)f(x)x12f(2)21x21f(1)6.1221PxyE4Cx1y1Dx2y2m=0m0lx2+y2=1m2+1=n2y=1222abRa+b=1x1x2R+3=33=6a=b=0.5x1=x2=1+65ax1+bx2ax2+bx1=a2+b2x1x2+abx12+x22a2+b2x1x2+2abx1x2=a+b2x1x2x1x21023m=5fx2x11x0 x43x2 5y=x2+2x+3=x+12+2x=12x=1m2y=x2+2x+3y=fxm22m410
