2024届高三定时训练．．．．A={1,2,3}B={y|y=3x−3,xA}AB={3}{1,3}{3,6}{0,3,6}1eexx+−y=y=x2ee−xx−yx=−tany=2px−12qmx−0mm3m3m5m5fx()x0f(x)=x2+3x+2x[1,3]112−2−44{#{QQABaYCAggCAAAIAAAhCUwXSCkGQkBCCAKoGBEAIoAABQANABAA=}#}A(4,3)tan()2+=tan(3π−=)1155−−2222{}annSnan0S6=10S18=70S24=90135150180sin2xfx(x)sin=+23335352484ac−−2ea1abcd==1()()a−c22+b−dbd−18910111(sin15−cos15)2=22sin2222.5−cos22.5=−21cos28cos32−cos62cos58=−23(tan10−3)cos50=−2xyR，f(x+y)=f(x)+f(y)+1x0fx()−1f(1)=1f(0)=0{#{QQABaYCAggCAAAIAAAhCUwXSCkGQkBCCAKoGBEAIoAABQANABAA=}#}fx()(1,1)Rfff(1)(2)(2023)2023+++=2x，yx22+y−xy=3xy+2xy+−23xy22+6xy22+4afx(x)(xlan=−x2)x1x2xx1210axx+24121fx()0fx()−122{#{QQABaYCAggCAAAIAAAhCUwXSCkGQkBCCAKoGBEAIoAABQANABAA=}#}f(x)=1−log2(x+2)2π△ABCABCabc，A=a=7b=13△ABC1234123456………(0,+)fx()fx()e−x1f(lnx)+xe1f()=2ex2A={x|a+1x2a−1}B={x|x3x5}a=4ABABa{#{QQABaYCAggCAAAIAAAhCUwXSCkGQkBCCAKoGBEAIoAABQANABAA=}#}fxxaxa()(3)3=−++2，aRxfx()0x+[4,)fx()9−af(x)=3sin2x+cos2x+1fx()△ABCABCabcfA()=2a=23fx()Rx0f(x)=x2exfx()fx()f()ax22−3x−1+f(5−ax)+ax−(3+a)x+40xRa{#{QQABaYCAggCAAAIAAAhCUwXSCkGQkBCCAKoGBEAIoAABQANABAA=}#}2{}annSn22annnSan=+*nNamn−22mf(x)=lnx+mx+1g(x)=−x(ex1)fx()0mxf()()xgx{#{QQABaYCAggCAAAIAAAhCUwXSCkGQkBCCAKoGBEAIoAABQANABAA=}#}