Is Math.Sin giving me the wrong answer? [duplicate]

Is Math.Sin giving me the wrong answer? [duplicate]

References

Reference NO 1

http://stackoverflow.com/questions/15186177/is-math-sin-giving-me-the-wrong-answer

Reference NO 2

http://stackoverflow.com/questions/13846079/sin-and-cos-functions-returning-incorrect-results

Reference NO 3

http://stackoverflow.com/questions/17087384/sine-function-accuracy-on-javascript-for-angles-pi-rad-and-its-integer-multiples

Reference NO 4

http://stackoverflow.com/questions/15980819/exact-sine-cosine-tangent-of-various-angles

Reference NO 5

http://math.stackexchange.com/questions/92343/intuitive-explanation-of-the-graph-y-sin-x

Reference NO 6

http://forums.udacity.com/questions/100054073/why-using-trigonometric-functions-only-does-not-work

Reference NO 7

#EANF#

Reference NO 8

#EANF#