/sqt/ Stupid Questions Thread: Oxford Capacity Analysis Edition

This thread is for questions that don't deserve their own thread.

Tips!
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Other urls found in this thread:

en.wikipedia.org/wiki/Möbius_transformation#Higher_dimensions
en.wikipedia.org/wiki/Henry_(unit)
en.wikipedia.org/wiki/Tesla_(unit)
wolframalpha.com/input/?i=x(0)=1, x(n)=(5x(n-1))-4n + 1
math.stackexchange.com/questions/55468/how-to-prove-that-exponential-grows-faster-than-polynomial
twitter.com/NSFWRedditGif

what the fuck is the answer to:
sin(x) + cos(x) = a
you are supposed to solve for x.
got it from my teacher as a brainteaser that she says can be beautifully solved geomatrically, but i just don't see how to solve it other than "all x are correct as long as a is an arbitrary constant".'
i feel like a brainlet right now

I also tried constructing a right triangle where the hypotenuse is equal to one so that i could simplify the length of the other sides as equal to the cosine and sine respectively. then i tried substituting with the pythagoras formula (Hypotenuse^2 = A^2 + B^2 where A and B are the cathetus (if that is even the right word, not native speaker)) but it just gave me cos(x) = cos(x)

Draw the graphs and use superposition

Hi Veeky Forums. Is there an n-dimensional equivalent of the linear fractional transformation
[eqn]f(x) = \frac{ax+b}{cx+d}[/eqn]

I have some novel numerical jiggery pokery that is too cool to not understand deeper which operates under the assumption that just such a thing exists, but I'll be damned (as an hobbyist) if I can find anything about this.

en.wikipedia.org/wiki/Möbius_transformation#Higher_dimensions

What's the difference between an integral and an antiderivative?

How can I graph the Forward 2D DCT?

>What's the difference between an integral and an antiderivative?
An integral is a number, an antiderivative is a function.

jesus fucking christ am I retarded