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时间:2021-04-17
《最新年河南省濮阳市华龙区高级中学高中数学2.2.2《指、对数函数与反函数》课件 新人教版必修1ppt课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、2017年河南省濮阳市华龙区高级中学高中数学2.2.2《指、对数函数与反函数》课件新人教版必修1问题提出设a>0,且a≠1为常数,.若以t为自变量可得指数函数y=ax,若以s为自变量可得对数函数y=logax.这两个函数之间的关系如何进一步进行数学解释?指、对数函数与反函数y=ax(a>1)y=logax(a>1)图象定义域值域性质yx01yx01RR当x>0时y>1;当x<0时01时y>0;当02、、值域有什么关系?函数图象之间有什么关系?单调性有什么关系?思考3:函数y=1-x,的反函数分别是什么?由此推测:如果函数y=f(x)的图象关于直线y=x对称,则函数f(x)与其反函数有什么关系?理论迁移例1求下列函数的反函数:(1)y=3x-1;(2)y=+1(x≥0);(3);(4).例2已知函数.(1)求函数f(x)的定义域和值域;(2)求证函数y=f(x)的图象关于直线y=x对称.例3若点P(1,2)同时在函数y=及其反函数的图象上,求a、b的值.Unit3QualityofGoodsDescriptionofGoodsinc3、ludesnameofcommodity&QualityNameofCommodity---choosesuitablename:relativetotariff,carriage---keepthenameinconformityinalldocuments---useinternationallyrecognizednameofcommodityImportanceofQualityItdeterminesthepricevalueofthegoods.Itexertsatremendousinfluenceoverthesale4、sandprestigeofthegoods.Itinvolvesthefundamentalrightsandobligationsofbothparties.Therefore,Thequalityclauseshallbestipulatedclearlyinbusinessnegotiationandconclusionofthecontract.DefinitionforQualityofGoodsoutwardsappearance:shape,structure,color,flavor,luster,etc.inner5、features:composition,physicalandmechanicalproperty,chemicalandbiologicalfeature,etc.MethodsofStipulatingQualityofGoodsBydescription*byspecification*bygrade*bystandard*bybrandnameortrademark*bynameoforigin*bydescriptionandillustrationBysample*bytheseller’ssample*bythebu6、yer’ssample*bycountersampleBACKChineseGroundnutMoisture(max.)13%Admixture(max.)5%Oilcontent(min.)44%AboutstandardInternationalstandard:ISO:InternationalStandardsOrganization—hasmorethan4000standardsIEC:InternationalElectrotechnicalCommission—hasover1580standardsNation7、alstandard:GB14-05(isnationalstandardpublishedin2005,publicationNo.is14)Craft(Guild)Standard行业(公会)标准LocalStandardEnterpriseStandardTETRACYCLINEHCLTABLETS(SUGARCOATED)250mgB.P.1980.(B.P.=BritishPharmacopoeia)------It’simportanttoindicatethenameofthepublicationanditsversi8、on.Payattentionto:FAQFairAverageQuality,referstotheaveragequalityleveloftheexportcommoditywithinacertainperiod
2、、值域有什么关系?函数图象之间有什么关系?单调性有什么关系?思考3:函数y=1-x,的反函数分别是什么?由此推测:如果函数y=f(x)的图象关于直线y=x对称,则函数f(x)与其反函数有什么关系?理论迁移例1求下列函数的反函数:(1)y=3x-1;(2)y=+1(x≥0);(3);(4).例2已知函数.(1)求函数f(x)的定义域和值域;(2)求证函数y=f(x)的图象关于直线y=x对称.例3若点P(1,2)同时在函数y=及其反函数的图象上,求a、b的值.Unit3QualityofGoodsDescriptionofGoodsinc
3、ludesnameofcommodity&QualityNameofCommodity---choosesuitablename:relativetotariff,carriage---keepthenameinconformityinalldocuments---useinternationallyrecognizednameofcommodityImportanceofQualityItdeterminesthepricevalueofthegoods.Itexertsatremendousinfluenceoverthesale
4、sandprestigeofthegoods.Itinvolvesthefundamentalrightsandobligationsofbothparties.Therefore,Thequalityclauseshallbestipulatedclearlyinbusinessnegotiationandconclusionofthecontract.DefinitionforQualityofGoodsoutwardsappearance:shape,structure,color,flavor,luster,etc.inner
5、features:composition,physicalandmechanicalproperty,chemicalandbiologicalfeature,etc.MethodsofStipulatingQualityofGoodsBydescription*byspecification*bygrade*bystandard*bybrandnameortrademark*bynameoforigin*bydescriptionandillustrationBysample*bytheseller’ssample*bythebu
6、yer’ssample*bycountersampleBACKChineseGroundnutMoisture(max.)13%Admixture(max.)5%Oilcontent(min.)44%AboutstandardInternationalstandard:ISO:InternationalStandardsOrganization—hasmorethan4000standardsIEC:InternationalElectrotechnicalCommission—hasover1580standardsNation
7、alstandard:GB14-05(isnationalstandardpublishedin2005,publicationNo.is14)Craft(Guild)Standard行业(公会)标准LocalStandardEnterpriseStandardTETRACYCLINEHCLTABLETS(SUGARCOATED)250mgB.P.1980.(B.P.=BritishPharmacopoeia)------It’simportanttoindicatethenameofthepublicationanditsversi
8、on.Payattentionto:FAQFairAverageQuality,referstotheaveragequalityleveloftheexportcommoditywithinacertainperiod
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