CHAPTER 9. INTEGRAL CALCULUS
=
= Figure 196.
= fÑ=íÜÉ=êÉÖáçå=o=áë=íÜÉ=éçä~ê=êÉÅí~åÖäÉ=ÖáîÉå=Äó== M ≤ ~ ≤ ê ≤ Ä I= α ≤ θ ≤ β I=ïÜÉêÉ= β − α ≤ Oπ I=== íÜÉå== β Ä
∫∫ Ñ (ñ I ó )ÇñÇó = ∫ ∫ Ñ (ê Åçë θI ê ëáå θ)êÇêÇθ K== o
α ~
=
=
= Figure 197.
= =
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