alleryIf part of a curve is above the axis and part below, the areas are:
ADivided one by one
BAdded as magnitudes
CSubtracted directly
DMultiplied together
Answer & Solution
Correct answer: B. Added as magnitudes
1. The lower part gives a negative integral.
2. Simply adding the two would cancel real area.
3. So the magnitudes are added instead.
4. The answer is added as magnitudes.
_Source: syllabus Mathematics, Ch 8 'Application of Integrals'_
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