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# Maths A level Help! watch

1. the diagram shows a sketch of the curve y= (x 1)^(-1/2). the region enclosed by the curve, the coordinate axes and the line x=1 is rotated completely about the x axis' volumes of revolution. Find the volume of the solid formed.
2. the diagram shows a sketch of the curve y= (x+1)^(-1/2). the region enclosed by the curve, the coordinate axes and the line x=1 is rotated completely about the x axis. Find the volume of the solid formed.

When ever I do this, the indices come out as 0???
3. (Original post by Jasmine0400)
the diagram shows a sketch of the curve y= (x+1)^(-1/2). the region enclosed by the curve, the coordinate axes and the line x=1 is rotated completely about the x axis. Find the volume of the solid formed.

When ever I do this, the indices come out as 0???
You are calculating

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