Ryan Patel's answer to :)'s Secondary 4 A Maths Singapore question.

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Ryan Patel
Ryan Patel's answer
115 answers (Tutor Details)
Hope this helps.
Ryan Patel
Ryan Patel
3 years ago
Edit: note the negative sign on the E to D integral in method 1. This is because integrals under the axis will give a negative value. But since we want the area, we take the positive value.