Help with Integration Question! (1 Viewer)

[Khan.Paki]

a) Find area bounded by the x-axis and the graph y=X²(1-x)

 

[photastic]

Draw it, find the boundaries, expand then do it.

 

[Khan.Paki]

how would you draw it? thanks for quick reply

 

[photastic]

X^2 indicates a root at the origin but would look a jump. (1-x) indicates a root at 1 but due to the negative x, the curve will end negatively. The curve therefore would look like a snake. Starting in the 2nd quad, approaching 0 and jump, then change concavity and approach negative as it passes through 1

 

[Khan.Paki]

Thanks sooo muchh

 

[Librah]

I havn't done math for a while, so is 1/12 the answer? Need confirmation so i know i haven't completely lost it lol.

 

[hypermax]

I havn't done math for a while, so is 1/12 the answer? Need confirmation so i know i haven't completely lost it lol.

correct

 

[hypermax]

find the zeros, the zeros become your parameters for your bounded area and then just to simple integraition

 

[photastic]

correct

Wrong, an area requires units

 

[Librah]

Wrong, an area requires units

Had it in my working out on paper.

 

[photastic]

Had it in my working out on paper.

Your a 4u kid, do it in your head

 

[Librah]

Your a 4u kid, do it in your head

lol i actually did it in my head, but wrote it down for practice, since i've forgotten how to write. It's a strange feeling.

 

[Kaido]

Rofl, join date 2007, is a 'new member' :alone:

 

[dan964]

^
& hsc in 2008
probably did 2u