(Other than E=MC^2! & A^2+B^2=C^2) why?
2006-12-14 23:35:12 · 6 answers · asked by jennifer g 7 in Science & Mathematics ➔ Mathematics
The quadratic equation. It's relatively simple and gives a decisive way to treat the geometry of conic sections (parabolas, hyperbolas, ellipses). I have never found the cubic or quartic equations to be helpful, and there isn't even one for quintics or higher.
2006-12-15 12:53:24 · answer #1 · answered by Steven S 3 · 0⤊ 0⤋
I myself actually love the definition of the derivative.
lim [f(x+h) - f(x)]/h
h -> 0
Why? Because for a number that doesn't really exist (since limits are approximations), it has so many valuable applications.
My other favourite, as a couple of people have already answered, is the equation
e^(i*pi) + 1 = 0
Which combines 5 of the most important concepts of math.
2006-12-14 23:52:56 · answer #2 · answered by Puggy 7 · 0⤊ 0⤋
Wow! I have a lot... I love the Calculus equations to solve parabolas. Otherwise, I realy like (a+b)^2 = a@ +2ab + b^2...
Also, I love the I = Prt
2006-12-14 23:45:43 · answer #3 · answered by Anonymous · 0⤊ 0⤋
DwayneK+JenniferG=BigHeart
2006-12-15 02:13:31 · answer #4 · answered by Anonymous · 0⤊ 0⤋
e^(i*pi) = -1.
Because it combines almost everything important about maths: complex numbers, trigonometry, exponentials negative numbers. It also has the three most interesting numbers in maths: e, i and pi.
It also has -1 which is pretty great too.
2006-12-14 23:40:43 · answer #5 · answered by THJE 3 · 0⤊ 0⤋
e^ipi+1 = 0
because this has got 0(additive identity) 1 multipilcative(identity) imaginary numer i and transadentals pi and e.
2006-12-14 23:48:27 · answer #6 · answered by Mein Hoon Na 7 · 1⤊ 0⤋