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Perplex
IB Math AIHL
/
Integration
/
Problem Bank
IB Math AIHL
/
Integration
/
Problem Bank

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I'm Plex, here to help with problems on this worksheet!
[Maximum mark: 6]

Consider the function ​f(x)=x√8−x3​. The following diagram shows part of the graph of ​f.


The curve ​y=f(x)​ has an ​x​-intercept at ​a>0.

  1. Find the value of ​a.

    [1]
    a=

The region enclosed between the curve ​y=f(x)​ and the coordinate axes in shaded in the diagram above.

  1. Find the volume of the solid produced when the shaded region is revolved ​2π​ about the ​x​-axis.

    [5]
[Maximum mark: 6]

Consider the function ​f(x)=x√8−x3​. The following diagram shows part of the graph of ​f.


The curve ​y=f(x)​ has an ​x​-intercept at ​a>0.

  1. Find the value of ​a.

    [1]
    a=

The region enclosed between the curve ​y=f(x)​ and the coordinate axes in shaded in the diagram above.

  1. Find the volume of the solid produced when the shaded region is revolved ​2π​ about the ​x​-axis.

    [5]