Cosine of 1 degree is about 0.999848.
Cosine of 1 radian is about 0.540302.
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Inverse of Cosine is 'ArcCos' or Cos^(-1) The reciprocal of Cosine is !/ Cosine = Secant.
The cosine of 2pi is 1. In fact, for every integer N, the cosine of 2 N pi is 1.
Undefined!!!! Can't answer it! All sine and cosine values are between -1 and 1 !!!
I was not aware that the cosine function was in fashion!The range, on the other hand, is [-1, 1].
Cosine cannot have this kind of high value, it ranges from -1 to +1