Eric Nicholas K's answer to Rae Kuan's Secondary 4 A Maths Singapore question.

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
Here. We must apply modulus on the section of the graph below the x-axis as integrals for portions of graphs below the x-axis give negative values, and obviously it does not make sense to add a negative area.
Rae Kuan
Rae Kuan
5 years ago
Thank you! :)