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A019842 Decimal expansion of sine of 33 degrees. 2

%I #27 Aug 21 2023 11:51:18

%S 5,4,4,6,3,9,0,3,5,0,1,5,0,2,7,0,8,2,2,2,4,0,8,3,6,9,2,0,8,1,5,6,5,3,

%T 8,1,6,0,7,9,0,4,5,8,7,7,1,8,7,6,3,9,7,5,4,5,6,1,2,5,2,4,9,0,0,9,6,2,

%U 2,1,8,9,6,0,1,6,2,5,8,8,9,8,8,0,8,5,8,5,8,9,0,1,1,3,2,8,6,5,3

%N Decimal expansion of sine of 33 degrees.

%C This sequence is also decimal expansion of cosine of 57 degrees. - _Mohammad K. Azarian_, Jun 29 2013

%C An algebraic number of degree 16 and denominator 2. - _Charles R Greathouse IV_, Aug 27 2017

%H Ivan Panchenko, <a href="/A019842/b019842.txt">Table of n, a(n) for n = 0..1000</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Trigonometric_constants_expressed_in_real_radicals">Trigonometric constants expressed in real radicals</a>

%H <a href="/index/Al#algebraic_16">Index entries for algebraic numbers, degree 16</a>

%F Equals A019831 * A019888 + A019820 * A019877 = (1/2) * A019896 + A019812 * A010527. - _R. J. Mathar_, Jan 27 2021

%t RealDigits[Sin[33 Degree],10,120][[1]] (* _Harvey P. Dale_, Jul 26 2023 *)

%o (PARI) sin(11*Pi/60) \\ _Charles R Greathouse IV_, Aug 27 2017

%K nonn,cons

%O 0,1

%A _N. J. A. Sloane_

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Last modified March 28 16:12 EDT 2024. Contains 371254 sequences. (Running on oeis4.)