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

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Eric Nicholas K
Eric Nicholas K's answer
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Hi Sonia! Each integral represents the area under the curve.

When we integrate a curve with respect to x, the definite integral represents the area under the curve to the x-axis.

When we integrate a curve with respect to y, the definite integral represents the area under the curve to the y-axis.