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Is This Right??? (1 Viewer)

Cattle

New Member
Joined
Nov 29, 2005
Messages
25
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Female
HSC
2006
just another question about my assessment

The question asks me to evaluate the integral from 0 to 1 of (a+bx+cx^2+dx^3)dx

The answer that i got was a +b/2+ c/3+ d/4 is this right or not???


The last q of the assessment is
a) the area of the region bounded by the curves y=x^2 and y= x+2, between x=0 and x=1 is rotated about the x-axis. find the volume of the generated solid
b) the region in the first quadrant bounded byt the graphs f(x) =1/8 x^3 and
g(x)=2x is rotated aobut the y-axis. find the volume of the solid so formed

Now for this question do i have to find the volumes of the 2 solids separately ie the 2 solids in part a .. then minus one from the other???
 

acmilan

I'll stab ya
Joined
May 24, 2004
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3,989
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N/A
Yes and yes to both questions. Minus the curve thats lower from the curve thats higher up.
 

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