that algebra seems way more fishy than the geometry Edit: i re did it with out the y` and x` and the algebra doesn't seem fishy anymore. another W video
You are thinking that the base triangle is the smaller triangle, and you have to add 2 to get the bigger triangle. YOu have to go down off of the big triangle to get the smaller one, so it is n-2, since the triangle is smaller.
Infinite possibilities usually means you might have to use geometric probabilty, and x,y,z might remind you of three dimensional plane so those two might be a trigger to think of this method in the test.
I love these videos, they are pure gold, and every time i pause them to write something down his expression is unpredictable.
I've shot videos for one of the 2012 AIMEs. You can find them with search on RUclips, or go to the Videos section of the AoPS site.
I love your expressive movements and faces. Makes longer videos really watchable!
And the 2013 AIME?
when will you explain the AIME?
that algebra seems way more fishy than the geometry
Edit: i re did it with out the y` and x` and the algebra doesn't seem fishy anymore. another W video
Can someone explain why he is taking the base of the triangle, and then squares it and divides it by two?
because he is trying to find the volume of the pyramid which is base area *height/3 the divided by to is to get the area of the triangle
at 11:20 can you explain how it becomes n-2 instead of n+2, after all x' does has to be smaller, no?
You are thinking that the base triangle is the smaller triangle, and you have to add 2 to get the bigger triangle. YOu have to go down off of the big triangle to get the smaller one, so it is n-2, since the triangle is smaller.
lol nice! thought you had to use derivatives and gave up during the test :)
No AMC problems REQUIRE derivatives. Some may be helpful with them, but they are not required.
I don't even understand it with the solution.
WOW!!!
who would have thought of this on the actual exam?
ikr!
A perfect score is reserved only for the elite
Infinite possibilities usually means you might have to use geometric probabilty, and x,y,z might remind you of three dimensional plane so those two might be a trigger to think of this method in the test.
10B was a lot easier though
I don't understand a thing. What is going on??
wut. just... wut.