where was i wrong? (1 Viewer)

shuning

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the area enclosed between the parabola and its latus rectum is

a solid figure has its base in the xy plane, the eclipse [text]\frac{x^2}{16}+\frac{y^2}{4}=1[/tex]

cross-sections perpendicular to the x-axis are parabolas with latus rectums in the xy plane

show that the area of the cross section at x=h is

my working:






WHERE THE FUCK WAS I WRONG????
 

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