quirky ways of remembering maths formulas? (1 Viewer)

[WannaBang?]

11 times table, once you get into double digits.

xx X 11

x's go on either end
x+x goes in the middle

12x11

132

(3 = 1 + 2)

Exphate, you are God!

 

[WannaBang?]

And what happens when you get past 9x10? To say nothing of the fact that from about Year 4, you should know everything up to and including 12x12.

It's a pretty simple answer, you just use your toes once you surpass 9 x 10 stupid. In year 4, we were learning about spaghetti, not timestables.

 

[WannaBang?]

ASTC - All Stations to Central/All Sluts Take Cock/And Sharky Talks Crap/etc etc

Exact trig ratio: use the 2 triangles

Expanding brackets: FOIL

Etc etc

The thing you have to remember is that what works for some, doesn't work for others. FInd your own tricks

SOH CAH TOA

(Sydney Opera House Can Always Hold Thousands Of Asians)

 

[Aerath]

It's a pretty simple answer, you just use your toes once you surpass 9 x 10 stupid. In year 4, we were learning about spaghetti, not timestables.

Uh huh. I'm still lost as to how the toes work.

What does FOIL stand for? Never heard of it.

 

[veloc1ty]

SOH CAH TOA

(Sydney Opera House Can Always Hold Thousands Of Asians)

Lol one that a teacher told me is Sex On Hot Coals Always Helps The Old Arthritis.

 

[Aplus]

I no longer use my calcultor. It's practically of no use to me anymore.

Should you even be using a calculator for 9 times tables

 

[WannaBang?]

Should you even be using a calculator for 9 times tables

Well, prior to learning the finger rule, I had to use a calculator to calculate the 9 x tables. How else would I be able to do it? Do you think my brain is a friggin calculator?

 

[Aplus]

Well, prior to learning the finger rule, I had to use a calculator to calculate the 9 x tables. How else would I be able to do it? Do you think my brain is a friggin calculator?

It's not that hard......

 

[lyounamu]

I never use calculator for XX x XX questions. I use calculator when I need to calculate the cos X or XXX x XXX questions where it takes too long to calculate.

 

[11kloseboy]

For the expansion of sin its sinacosb+cosasinb which can be easily be factorised as SC CS. School Certificate Counter Strike thats pretty much how i remember it. Tan is pretty basic, you just look at the top and change signs at the denominator. Hope this has been useful

 

[WannaBang?]

It's not that hard......

I was kidding. Relax.

 

[e-star!09]

i have one for sin^2 x + cos^2 x = 1

its a maths pick-up line that one of my friends made up

I goes: "I wish I was sin^2 x and you: cos^ x, so that together we can be one."
[Note: Sounds better as theta instead of 'x'... well.. in my opinion anyway!]
haha, geek-love!

 

[Aerath]

That's easy to remember though. It's the other two that are harder to remember, without dividing that eqn by sin^2 x and cos^2 x

 

[bored of sc]

think for sine (pronouned -sine-) they have the same sign.... (sine and sign are homophones (sound the same but are spelt differently))

or think that the fact sine has the same sign makes them homosexual - think the catholic view of homosexuality is that it is sinful - so the same signs therefore gender (homosexuals) = a sin (a vice, immoral action) = sin (as in trig)

 

[bv]

our maths class is used to singing out formulas..
we have little jingles for most of the long formulas

then for the simpsons rule we know it as h/3(firsty+lasty+4times middley) coz the simpsons have 3 kids

for SOH CAH TOA we have Some Old Hags Cant Always Hide Their Old Age

other formulas just seem to roll out of your pen after a while

the formulas are the easy part anyways.. remembering when to use them is the hard part

 

[bored of sc]

that reminds me

All (sine, cos, tan [all of them]) Stations (sin) To (tan) Central (cos) for the positive sin, cos and tan quadrant things

 

[jimmayy]

Yeahh i also do this i put forumla's over my bedroom wall, along with physics forumulas aswell for me to look at and it jsut comes in my head

 

[hollyy.]

Uh huh. I'm still lost as to how the toes work.

What does FOIL stand for? Never heard of it.

first, outside, inside, last -> its for expanding brackets.

 

[Tsylana]

For the pythagorean identities

I just remember

sin^2 + cos^2 = 1

Then the other two is
I T S = 1 + Tan = Sec (You know its not sin because its used in the original one)
and then the other one is

1 + small co = large co
1 + cot = cosec (lol.)

 

[tommykins]

For the pythagorean identities

I just remember

sin^2 + cos^2 = 1

Then the other two is
I T S = 1 + Tan = Sec (You know its not sin because its used in the original one)
and then the other one is

1 + small co = large co
1 + cot = cosec (lol.)

Those are wrong, they should be squared.

1+tan^2 x = sec^2 x
1+cot^2 x = cosec^2 x