Answers created by Mikee F.

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• Is #f(x)=-x^5+3x^4-9x^3-2x^2-6x# concave or convex at #x=-3#?
  
• How do you find the volume of the solid generated by revolving the region bounded by the curves y = 10 / x², y = 0, x = 1, x = 5 rotated about the y-axis?
  
• How do you find the integral of #(1 + e^2x) ^(1/2)#?