I keep getting the wrong answer tho. My algebra is clearly wrong can you perhaps show me?there is no region bounded by these two parabolas, the correct way to refer the area is "enclosede by parabolas ... and ... and the x axis"
the solution is easy, split the region into two parts: 0 to 1, and 1 to 2. integrate respectively and add up.
YES I GOT THAT TOOO But the answer says 2PI/3 units^3I got 33/5 units^3
did anyone else?
Don't you have to combine the equations together??Recall
You can integrate separately for the corresponding areas by letting:
oh yeah remember how for volume it's pi outside so times the ans by piYES I GOT THAT TOOO But the answer says 2PI/3 units^3
and I got 33Pi/5 Units^3
My friend did it he basically just integrated y^2=x^4 and multiplied it by 2.... which makes sense when you draw the graph but like...oh yeah remember how for volume it's pi outside so times the ans by pi
but why only 2 pi/3 lol?
ahhh symmetrical, which is funny because I actually posted the diagram. Dammit, but wouldn't there be more than just that method?My friend did it he basically just integrated y^2=x^4 and multiplied it by 2.... which makes sense when you draw the graph but like...
Yea I know I want to learn the algebraically method that always works, because usually they aren't symmetrical and I don't want to repeat the same mistake.ahhh symmetrical, which is funny because I actually posted the diagram. Dammit, but wouldn't there be more than just that method?
ok that's solved
most of the time I sketch but omg when I do a mistake in the diagram, I'm doomedYea I know I want to learn the algebraically method that always works, because usually they aren't symmetrical and I don't want to repeat the same mistake.
LOOOOOOOOOOOOOOOOOL I hate drawing graphs TBH I suck at drawing Teacher tells me off when I don't draw graphs and im like IT DON'T TELL ME TO DRAW GRAPHS PLEASE... haven't met alot of people that actually use the word "doomed" like myselfmost of the time I sketch but omg when I do a mistake in the diagram, I'm doomed
Yes, doomed is a word used when I exaggerate a lot. My teacher likes a sketch no matter how messy because he can't draw too. Btw, you doing hsc this year?LOOOOOOOOOOOOOOOOOL I hate drawing graphs TBH I suck at drawing Teacher tells me off when I don't draw graphs and im like IT DON'T TELL ME TO DRAW GRAPHS PLEASE... haven't met alot of people that actually use the word "doomed" like myself