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CHAPTER 9. INTEGRAL CALCULUS
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Figure 196.
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fÑ=íÜÉ=êÉÖáçå=o=áë=íÜÉ=éçä~ê=êÉÅí~åÖäÉ=ÖáîÉå=Äó==
β
M ≤ ~ ≤ ê ≤ ÄI= ≤α θ ≤ β I=ïÜÉêÉ= − α ≤ O πI===
íÜÉå==
β Ä
∫∫ Ñ ( ) ó I ñ ÇñÇó ∫∫ Ñ ( = ê Åçë θ ëáå ) θ êÇêÇ K==
θ
ê
I
o α ~
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Figure 197.
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264
