Math Humor

http://www.mathproblems.info/mathhumor.html ^

[Perdogg]

The answer to 3 is 5 cm.

[Erik Latranyi]

I love the one where you have to find “x” and the student circles it and says “here it is”!

That’s priceless!

[1rudeboy]

Much better than I ever did in math.

[EdReform]

Funny!

[Old Professer]

Close, according to Yahoo answers: "You're on the path to righteous, Buddy, but you still gotta keep better track of those terms. Let's see if I can help: (a+b)^n = sum of (nCr)*a^(n-r)*b^r where r goes from 0 to n and (nCr) is the 'binomial function' n!/(r!*(n-r)!) with the ! meaning factorial (n! means n*(n-1)*(n-2)*...2*1 so 4! = 4*3*2*1 = 24 and 0! = 1 by definition) That looks scary, but it's actually one *helluva* lot easier than doing 14 polynomial multiplications. First term (r=0) (nCr) = 14!/(0!*(14!)) = 1 a^(14-0) = a^14 b^0 = 1 so 1'st term is a^14 2'nd term (r=1) (nCr) = 14!/(1!*(13!)) = 14 a*(14-1) = a^13 b^1 so 2,nd term is 14*(a^13)*b 3'rd term (r=2) (nCr) = 14!/(2!*(12!)) = 91 (not 101) a^(14-2) = a^12 b^2 so 3'rd term is 91*(a^12)*b^2 4'th term (r=3) (nCr) = 14!/(3!*(11!)) = 364 a^(14-3) = a^11 b^3 so 4'th term is 364*(a^11)*b^3 and so on. The (nCr) function is *so* important in math that, especially on scientific calculators, there's frequently a special button to calculate it. If yours has one, you have it made. If not, at least see if it has a factorial (n!) key. If not, spend 10 bucks at Walgreens or K-Mart and get one that does Also, anonymous was totally correct about (2x+y)^n You have to use the entire 2x as the a in (a+b)^n. Hang in there, Dewd. You're studying and thinking and that's *always* the right thing. Doug" 3 years ago

[GOYAKLA]

The correct answer to #3 is x = yellow(lower case).
I got this answer from a goBerment guy.

[ronnietherocket2]

The answer is technically correct, the problem was to FIND x, not calculate it.

[NTHockey]

A story made the rounds at University of South Florida when I started ther. The story went that a certain Philosophy prof gave a final exam (3 hrs) and wrote on the board: Why? and walked out. One student quickly turned his blue book in with two words: Why not? He got an “A”, supposedly.

And then there’s the one about whether Hell is exothermic or endothermic.

[RobRoy]

I took math in high school through trig 1-4 and calculus. I’m 55 now. My problem with it now is that the only math symbols I can remember the meaning of are the ones for addd, subtract, multiply and divide. I don’t even remember what ^ means.

[Pan_Yan]

[GOPJ]

LOL - this should be sent to math teachers everywhere...

[La Lydia]

I can still manage to grasp trig, more or less. But if I had to take another calculus class now I would be seriously out of luck. My young brain cells were up to it, my brain cells now are on the beach in Playa de Carmen, and couldn’t be bothered.

[Ecliptic]

“I took math in high school through trig 1-4 and calculus. I’m 55 now. My problem with it now is that the only math symbols I can remember the meaning of are the ones for addd, subtract, multiply and divide. I don’t even remember what ^ means.”

OK, I don’t feel so bad now!! LOL...
I thought I was the only person in that boat!!

[mikrofon]

I think these students are now in charge of calculating the budget numbers for the Administration...

[kevkrom]

A story made the rounds at University of South Florida when I started ther. The story went that a certain Philosophy prof gave a final exam (3 hrs) and wrote on the board: Why? and walked out. One student quickly turned his blue book in with two words: Why not? He got an “A”, supposedly.

Didn't you hear about the other student who also got top marks with "Because."?

[ShadowAce]

X = Y
X² + X = X² + Y
X² + X - Y = X²
X² + X - Y - XY = X² - XY
(X + 1)(X - Y) = X(X - Y)
X + 1 = X

3 = 2

[big black dog]

a)...(X + 1)(X - Y) = X(X - Y)

b)...X + 1 = X

To go from a to b, you have to divide by 0.

Not allowed

[ShadowAce]

To go from a to b, you have to divide by 0.

Hence, I was keeping in line with the thread title.