The curves intersect where they have the same value:
x=x3
x−x3=0
x(1−x2)=0
x(1−x)(1+x)=0
The curves intersect at x=−1,0,1
For the region from x=−1 to x=0:
Testing x=−0.5:
- y=x gives −0.5
- y=x3 gives −0.125
Since −0.125>−0.5, the curve y=x3 is above y=x in this region.
For the region from x=0 to x=1:
Testing x=0.5:
- y=x gives 0.5
- y=x3 gives 0.125
Since 0.5>0.125, the curve y=x is above y=x3 in this region.
The total area is:
Total Area=∫−10(x3−x)dx+∫01(x−x3)dx
For the first integral:
∫−10(x3−x)dx=[4x4−2x2]−10
=(0−0)−(41−21)
=0−(−41)
=41
For the second integral:
∫01(x−x3)dx=[2x2−4x4]01
=(21−41)−(0−0)
=41
Total Area =41+41
=21 square units
Therefore, the area of the region bounded by the curves is 21 square units.