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A curve has a part A1 below and a part A2 above the x-axis. What is the total area?
AA1 + A2
B|A1| + A2
CA1 - A2
D|A1 + A2|
Answer & Solution
Correct answer: B. |A1| + A2
Area below the axis gives a negative integral, so its absolute value is added to the positive part.
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