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Example · Example 7

Q.Find the area of the region bounded by the curve y=x2y = x^2 and the line y=xy = x.

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The curves meet at x=0x=0 and x=1x=1, with the line above the parabola in between.

Setting x2=xx^2=x gives x2−x=0⇒x(x−1)=0x^2-x=0 \Rightarrow x(x-1)=0, so the curves meet at x=0x=0 and x=1x=1. Testing x=0.5x=0.5: the line gives y=0.5y=0.5 and the parabola gives y=0.25y=0.25, so the line y=xy=x lies above the parabola y=x2y=x^2 throughout (0,1)(0,1). The enclosed area is …

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