Question: Volume of Revolution

Can anyone help me with the question? Keep getting the error. I don't know what is going on. Thank you in advance.

QUESTION_6.docx
 

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``

f := proc (x) options operator, arrow; (x-1)^2 end proc

proc (x) options operator, arrow; (x-1)^2 end proc

(1)

g := proc (x) options operator, arrow; x+1 end proc

proc (x) options operator, arrow; x+1 end proc

(2)

Pi*(int((f(x)-4)^2-(g(x)-4)^2, x = 0 .. 3))

(108/5)*Pi

(3)

``Error, (in plot) incorrect first argument HFloat(2.0)-HFloat(7.504824013780844e-232)*I

``


 

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