Fourteen Sick #5 — Curling Japanese Girls
October 31st, 2012
Background shenanigans are better than their ‘main’ jokes.
Impressions:
Well, it was primarily another "Yuuta learns to like Rikka" episode, and you know how much I absolutely bloody adore both him and their dynamic! He was a little more standable than usual, but without any of the imagined sequences to jolt me out of my daze, there wasn’t a ton else. Rikka’s bad at math. They could’ve at least done more with her learning in her various imagined ways as it seemed to be going with the RPG sequence. Instead, it was used as an excuse to bookend More of the Same™ with about 75% of the episode being more or less identical to episode 1, except with the other two taking Rikka/Damp Rag’s places for parts. At least stick with the episode’s ’premise’ for more than 4-5 minutes to give the illusion of a little focus and creativity.
Also, something seems very, very wrong with the math here.
Posted in Chuu2 | 7 Comments »
algorithm
III
2. (a +b +c)^2 – (b +c -a)^2 + (c +a -b)^2 – (a +b -c)^2
you should be able to solve this
[Reply]
October 31st, 2012 at 10:58 pm
Some of us went into social/human sciences for a reason.
[Reply]
October 31st, 2012 at 11:38 pm
Solve how? Simplifying? That’s easy.
Let’s expand the polynomials first:
(a+b+c)² = a²+2a(b+c)+(b+c)²
= a²+2ab+2ac+b²+2bc+c²
= a²+b²+c²+2ab+2ac+2bc
(b+c-a)² = b²+2b(c-a)+(c-a)²
= b²+2bc-2ba+c²-2ca+a²
= a²+b²+c²-2ab-2ac+2bc
(c+a-b)² = c²+2c(a-b)+(a-b)²
= c²+2ac-2bc+a²-2ab+b²
= a²+b²+c²-2ab+2ac-2bc
(a+b-c)² = a²+2a(b-c)+(b-c)²
= a²+2ab-2ac+b²-2bc+c²
= a²+b²+c²+2ab-2ac-2bc
Now, the expanded expression would result in this:
= (a²+b²+c²+2ab+2ac+2bc) – (a²+b²+c²-2ab-2ac+2bc) + (a²+b²+c²-2ab+2ac-2bc) – (a²+b²+c²+2ab-2ac-2bc)
= a²+b²+c²+2ab+2ac+2bc-a²-b²-c²+2ab+2ac-2bc+a²+b²+c²-2ab+2ac-2bc-a²-b²-c²-2ab+2ac+2bc
Now let’s add similar products:
= (2a²-2a²)+(2b²-2b²)+(2c²-2c²)
+ (2ab+2ab-2ab-2ab)
+ (2ac+2ac+2ac+2ac)
+ (2bc+2bc-2bc-2bc)
A lot of these sums are equal to zero. Simplifying:
= 8ac
This is high-school math.
[Reply]
October 31st, 2012 at 11:43 pm
If you are going to say “you should be able to solve this”, you should use something like _this_ instead:
[Reply]
November 1st, 2012 at 11:02 am
Only in Anime does -7 = 19
[Reply]
November 1st, 2012 at 6:04 pm
Do I just suck on math or is that equation impossible?
[Reply]