QR Ellipses Questions

[SmilesDDS]

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Has anyone come across one of these questions on their DAT? They're kinda tricky and math destroyer has quite a few of them...

 

[Yerrff]

Hey, has anyone answered your question regarding this? Or have you found an answer to it? I've been wondering the same thing, I feel like ellipse stuff is a littleeee out of the scope of the DAT. Thanks!

 

[molar3]

I had ONE ellipse question on mine, it was a word problem. I skipped it and guessed even though i reviewd ellipses in math destroyer.....i just didnt have time to do it on the test

 

[peanutb123]

the one i had you only need to know the formulas for them and you can easily figure it out.
use this for reference.

http://www.docstoc.com/docs/9655036/Formula-In-Geometry

 

[Yerrff]

Thanks!

 

[Jackson-Ave-Dental]

Actually, I've found Khan academy's videos on ellipses to be INCREDIBLY helpful.

That was the only thing I used from khan actually lol.

 

[rmm30]

the one i had you only need to know the formulas for them and you can easily figure it out.
use this for reference.

http://www.docstoc.com/docs/9655036/Formula-In-Geometry

thanks for the link dude. i printed it out for reference.

Ive been going over other conic sections: parabola, hyperbola, elipses from the sat II math review book. Does anybody know if this is worth the time? virtually none of the other prep books mentions these but ive been in the habit of overstudying for this thing since i began.

 

[rmm30]

anybody else reviewing conic sections?

 

[peanutb123]

You guys should understand the formula. For example if they were to ask the surface area of the cone excluding the you must know what part of the formula to chop off...

So understating the formulas is the key. then memorizing is imp.

Usually they love the cylinder. But i am not sure about the rest. I did memorize here and there. but cant remember it has been so long.

 

[Kahr]

Actually, I've found Khan academy's videos on ellipses to be INCREDIBLY helpful.

That was the only thing I used from khan actually lol.

I'm practically learning all of my QR through Khan academy, he's amazing, and his site has a ton of practice problems. Only thing he seems to be lacking on is geometry, but he covers just about everything for the DAT: algebra, arithmetic, trig, probability, statistics, word problems, etc.

anybody else reviewing conic sections?

Yep, I'm reviewing them at khan academy now actually. I never learned conic sections myself, and most advanced math I've ever dealt with was when I took physics, which was hard as all hell for me. If putting an hour or two into conic sections allows me to answer even one question on QR, I'm doing it, especially if what peanutb says is true, it'll make it an easy point.