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#### DeusAbscondus

##### Active member

- Jun 30, 2012

- 176

I have been asked to find the volume of an area rotated round the x-axis.

The area is that between two curves:

$$y=x^2$$

$$y=2x+3$$

I have calculated the area then got stuck as to what equation to plug into:

$$V=\int^b_a (f(x))^2\ dx$$

Would someone take a look at the geogebra screenshot which will follow in next post?

Thanks kindly,

D'Abs