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10ÎêAëìḄíᧇ24ᐗÎêBëìḄíᧇ16ᐗ.(2) ײNïÜÝêAëìḄíᧇ᪷Û⚪24a+16(200-a)<3920 a490²NïᨬñÜÝ90êAëìḄíᧇ.24. ᫀ (1)NFMN+NFNM=ZAEF.ᳮᵫ •/AB//CD,ZAEF+ZMFN=180°.ZMFN+ZFMN+4FNM=180°,AFMN+AFNM=ZAEF.(2)ZFMN+ZFNM+ZAEF=\SQ°.ᳮᵫ "•/AB//CD,:.ZAEF=ZMFN.ZMFN+ZFMN+ZFNM=180°,(2)a=1,b=2(3)10.5 ᪆ (1)õABC"ᡠ¼A(-4,-3),B,(2,-2),ᧅC'-rr÷-q-T--T-ττ»τJ•\tτ>ii-ii/•\>ir--c—i--4_'T?—ÔF3/g…"W…"Bᔆᩈ(2)§rPḄWr6Ḅᙶ᪗8(a-3/-4),.•R(-2,—2),a—3=—2,b—4=—2
11a=1,b=2(3)S=>=4x6-—x6xl--x3x3-—x4x3=10.5õABC22226. ᫀ 1,-1 ᪆ þÿ ᔠ=[2x+y=8ঝ.ᵫজ+ঝ,5x=15x=3.x=3ᐭজ3x3-y=7,y=2.••• Ḅ /=b=2.3a+b=2@,ᐭ"#$ 3+2b=a®.টᐭঞ3(3+2b)+b=26=—1.b=—1ᐭট+2=1.Ḅ, 1-Ḅ, -1.
