What is math 1,2?

Two different tests offered by collegeboard, there usually used as tests for admission to colleges in the United States

@Ethan whats the difference?

There supposed to vary in 'difficulty' with 2 being 'harder' then 1

Hmm

@KevinDriscoll by short I meant American "history"

Not the maths.

:)

I imagine there are more applied/engineering esque majors then 'pure' or 'general' mathematics majors in particular. I would rather show I am specifically interested in mathematics which I think might be slightly lost if I go and take physics tests. I probably wont do nearly as well on these tests either.

How might I go about proving that |f| is a step function if f is. It's obvious in theory.... I want to say let X be the partitioning of f and define a map from the partitions to the values they take, and show that X is a partitioning of those absolute values. I don't know how to denote a mapping like this, also I'd have to define a "largest mapping that fits the step function definition", then show that's a partitioning of the absolute values....

I should probably put that in a question....

Hm, I doubt it's true.

What about a function that is -1 on irrationals and 1 on rationals.

It's a step function, with just one step.

f(x)=c is a step function.

@KarlKronenfeld

Oh, I read the implication backward.

I think formally, you can use the exact same partition that $f$ provides for $|f|$.

@KarlKronenfeld I'm not sure how to denote step function's properties. I am being asked to prove.

holaaaaaa helloo

$\Pi_{k=1}^n\cos\frac{\theta_0}{2^k}.\cos\frac{\theta_n}{2}$

Are any of you familiar with some high-powered results that might help with this question: math.stackexchange.com/questions/532423/…

need help too :(

Hey @pourjour if pi could be expressed as a root, then it would be the length of a side of an n dimensional shape (n being whatever root you are considering)

It's not a fraction because.... circles

@AlecTeal sorry but I'm not good in geometry stuff

@pourjour a circle is the round one.

@pourjour a square is the one with right angles and same-length sides.

@pourjour if you do the square-root of the area you get the length of the sides of that square.

@pourjour the area of a circle is $\pi r^2$

@Ethan I think your specific interest in mathematics is probably unlikely to either help or hurt your admittance, but I am not sure. Many schools profess to have "major-blind" admissions

@Ethan: Honestly, any school that counts Math 1 and Math 2 as two separate tests is probably not worth your time anyway.

So, I'll ask again in case someone else knows. I used the ISC to guess an exact form for my numerical answer and it game something involving the sr(x) function; anyone know what this is?

I need help.. :(

strontium

lol