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1、p20172018c1“p()K/ABCDF/,AD/BC,AD = 3BC,LA1,C,Dn:?P,BB1?:Q,e?(:?QC/A1D;?B1Q = 2QB;?A1BCD?.?(? . ()A. 0B. 1C. 2D. 3 16. a = ln2,b = log32,c = 51 2,K.()A. a 0),eABk4f8,Kr?.()A. (2,+)B. 1,+)C. (2,+)D. 2,+)8. ,AN?nX2,KTAN?N.()A.20 3B. 6C.16 3D.10 3 29. f(x) = x53x35x+3ef(a)+f(a2) 0,ef(a) f(f(2),Ka?. ()A.
2、 (,2) (1,+)B. (,1) (0,+)C. (1,+)D. (2,1)11. f(x) = ax,x 0,a 6= 1)30,1,Ka?.n!)K:)A?i,yL.17. (?K10)(1)z:lg20lg5+lg2lg50-2lg2lg5;(2)?8A = x|x2+ 4x = 0,x R,B = x2+ 2(a + 1)x + a2 1 = 0,eBA?f8,a?.18. (?K12):P(0,5)9?C : x2+ y2+ 4x 12y + 24 = 0,lL:P,el?C?:A,B.(1)?|AB|l?;(2)eMAB?:,M?;,.19. (?K12)X3,?ocABCDA
3、1B1C1D1,.AB = 2,cBB1= 4,L:BB1C?R?cCC1:E,?B1Cu:F.(1)y:A1C BDE;(2):A1?BDE?ld. 320. (?K12):M3x2+ y2= 4$,N(4,0),:PMN?:.l : 3x + 4y 26 = 0.(1),?(P?%C),?C?;(2)e:Ql?:,lQ?C?,:R,4QRC?.21. (?K12)f(x) = ax2 |x| + 2a 1,(a).(1)ea = 1,f(x)?N4Om;(2)ea 1 2,?f(x)3m1,2?g(a),g(a).22. ?f(x) = log1 21ax x1(a)?u?:.(1)a?;(2)?f(x)3m(1,+)?N5nd;(3)eum3,4?zx?,f(x) (12)x+ m,m?.p()o212
