To get this.............it seems to me that u need to understand it in its entirety............or as the author of the Music of Primes put it..........the full extent of Euler's product.........when written out w/ the harmonic series and the primes on the other side in the form of (1 + 1)(1 + 1/2).............which is how it would start with an S of 1................2(3/2)...................kinda like beginning at 11........or 2.........a circle of sorts.....................what I call the prime fundamental...............
PythagorasPythagoras' Theorem says that for a right angled triangle, the square of the long side equals the sum of the squares of the other two sides:
x2 + y2 = 12
But 12 is just 1, so:
x2 + y2 = 1
(the equation of the unit circle)
Also, since x=cos and y=sin, we get:(the equation of the unit circle)
(cos(θ))2 + (sin(θ))2 = 1
a useful "identity"
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