高中数学常见结论总结(精品)

11.nSV3(VnSn)2.ABCtanA+tanB+tanC=tanAtanBtanCABCtanA+tanB+tanC0ABC3.424.5.1+xex1ln11---xxxxx)1(xexex6.)0,0(12222=+babyaxSabS=7.222)()(rbyax=-+-),(00yxP200))(())((rbybyaxax=--+--)0,0(12222=+babyax),(00yxP12020=+byyaxx)0,0(12222=-babyax),(00yxP12020=-byyaxx8.022=++++FEyDxyx0220000=++++++FEyyDxxyyxx)0,0(12222=+babyax12020=+byyaxx)0,0(12222=-babyax12020=-byyaxx)0(22=ppxy)(00xxpyy+=0222000000=++++++++FyyExxDyCyxyyxBxAx9.)0,0(12222=+babyax)0(0=++BACByAx22222CbBaA=+)0,0(12222=-babyax)0(0=++BACByAx22222CbBaA=-10.ABCD(),():ACBD,0=+BDACkk,(ACk,BDkACBD)211.)0(12222=+babyax1F2F21FPF=21FPF221cose-(2max21cose-=)12.(0xP)02,1exar=13.1k2k3k1l2l3l2l1l3l1k2k3k3222223321212kkkkkkkk+-+-=31231231312)()1(1kkkkkkkkk+++--=2122221123212kkkkkkkk+-+-=14.rbyaxnn=+),(11yxrybyxaxnn=+--111115.f(x)y=ax+baxxfx=+)(limbaxxfx=-+])([lim16.)0(12222=+babyaxOxabV34=17.18.CBACBAcoscoscossinsinsin++++19.f(x)ax=bx=)(baf(x)|22|ba-20.y=kx+m)0(12222=+babyax22222bkamb+21.xyz(272829)ACCBBASzACyCBxBA++==+=+=+222222.Fe(ace=)(F1)123.1l2l21121tankkkk+-24.ABCODnmOBOCnOAmOD+=+=1,(m+n)325.)0,0(12222=-babyax2ab26.)0(=kxky)2,2(kk)2,2(kk--k027.ABCABOABCABOSSABCcos=S:S28,29.1.2(1)(2)3,,,30.xxf=)()(xf)(xf)(1-=nnafa),1,0()(+=aabaxxfp)(xfna)1(),(1=-nafann)(1paapann-=--}{pan-a)0,0()(-++=bcadcdcxbaxxf}{na1),(1=-nafann)(11afa)(xfqp,qapakqapannnn--=----11qcapcak--=)(xfpkpapann+-=--111dack+=2)0,0()(2+++=eafexcbxaxxf21,xx)(1nnufu=+}{nuaeb2,0==2212111)(xuxuxuxunnnn--=--++4(1)+=-+=+==-=++342cos2cos2cos4242sin2sin2sin4142cos2cos2cos442sin2sin2sin4)sin()sin()sin(knnCnBnAknnCnBnAknnCnBnAknnCnBnAnCnBnA*Nk(2)CBA=++2sin2sin2sin8sinsinsin2sin2sin2sinCBACBACBA=++++2sin2sin2sin41coscoscosCBACBA+=++2sin2sin2sin212sin2sin2sin222CBACBA-=++4sin4sin4sin412sin2sin2sinCBACBA---+=++2sin2sin2sin4sinsinsinCBACBA=++2cot2cot2cot2cot2cot2cotCBACBA=++12tan2tan2tan2tan2tan2tan=++ACCBBACBACBABACACBsinsinsin4)sin()sin()sin(=-++-++-+(3)ABC812sin2sin2sinCBA8332cos2cos2cosCBA232sin2sin2sin++CBA2332cos2cos2cos++CBA833sinsinsinCBA81coscoscosCBA233sinsinsin++CBA23coscoscos++CBA432sin2sin2sin222++CBA12tan2tan2tan222++CBA?32tan2tan2tan++CBA?932tan2tan2tanCBA?332cot2cot2cot++CBA?3cotcotcot++CBA(4)ABC33tantantanCBA93cotcotcotCBA9tantantan222++CBA1cotcotcot222++CBA31.()532.[(Simpson)]Hh3VHSSSV)4(61201++=1S2S0S(2Hh=)(3)33.AAAOABACOAC,BAC,OABcosOAC=cosBACcosOAB(BACOAB)34.RtABCCABCabcABC2cba-+35.))((2233babababa+--=-))((2233babababa+-+=+36.ABCOHOCOBOAOH++=37.)0(22-baba)0(22-baba38.12)!1(!!21+++++++=nnxxnenxxxe212xxex++39.)2(--aaxeexx)0(ln21-tttt)20,0(ln+axaxaxx40.F41.a()642.ABCABCabc(1)=++0OCOBOAOABC(2)==OAOCOCOBOBOAOABC(3)OOCcOBbOAa=++0ABC(4)OCOBOA==OABC43.)sin()sin(sinsin22+-=-44.45.21cos2)21sin()21sin(sin--+=xxx46.(x,y)Ax+By+C=0+++-+++-2222)(2,)(2BACByAxByBACByAxAx47.cos1eep-=(e)48.),,(MNnX~HNnMXE=)((NM))111)(1()(----=NnNMNMnXD49.nadnbqncnnnbac=ncnnS2121)1(-+-=+qccqcSnnn50.()()1122,,,AxyBxy()()()()12120xxxxyyyy--+--=51.ABAB52.11--=knknnCkC53.(1)(2)(3)(4)(5)(6)(7)54.ABCABCabc2222cbaACAB-+=55.mn22nmnmnmenmeeee+--+