1300 Math Formulas

CHAPTER 8. DIFFERENTIAL CALCULUS

8.7 Differential

=

cìåÅíáçåëW=ÑI=ìI=î=

fåÇÉéÉåÇÉåí=î~êá~ÄäÉW=ñ=

aÉêáî~íáîÉ=çÑ=~=ÑìåÅíáçåW=ó′(ñ)I=Ñ′(ñ)=

oÉ~ä=Åçåëí~åíW=`=

aáÑÑÉêÉåíá~ä=çÑ=ÑìåÅíáçå=ó=Ñ(ñ)W=Çó=

aáÑÑÉêÉåíá~ä=çÑ=ñW=Çñ=

pã~ää=ÅÜ~åÖÉ=áå=ñW=∆ñ=

pã~ää=ÅÜ~åÖÉ=áå=óW=∆ó=

=

=

838. Çó=ó′Çñ=

=

839. Ñ()()ñ+∆ñ =Ññ +Ñ′(ñ)∆ñ=

=

=

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Figure 178.