Area below curve f1
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dudungArea below curve f1

dudung

Integral of f1(x) from xa to xb is area below curve f1(x) between xa and xb


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Area below curve f2
i

dudungArea below curve f2

dudung

Integral of f2(x) from xa to xb is area below curve f2(x) between xa and xb


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Area between curve f2 and f1
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dudungArea between curve f2 and f1

dudung

Integral of f2(x) - f1(x) from xa to xb is area between curve f2(x) and f1(x) between xa and xb


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Annulus Sector
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dudungAnnulus Sector

dudung

Annulus sector can be calculated from integral of f2(x) - f1(x) from xa to xb, where xa = ra and xb = rb.


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