cos x=.091
x=(cos^-1).091
x=84.779
Cosine of 1 degree is about 0.999848. Cosine of 1 radian is about 0.540302.
cosine(59 degrees) = 0.51504 (rounded)
cos(50) = 0.6428 (rounded)
The number 1.414... (square root of 2) is two times the cosine or sine of a 45 degree angle. The reason for this is that for a 45 degree angle, the two sides are cosine and sine, they are equal, and if you solve using the Pythagorean theorem with a hypotenuse of 1, the two sides are each (21/2)/2.
what is the cosine of 3.14 ?
Cosine is 0.5
Cosine of 1 degree is about 0.999848. Cosine of 1 radian is about 0.540302.
cosine(59 degrees) = 0.51504 (rounded)
It is 1.
45 degree
cos(37 deg) = 0.7986
cos(50) = 0.6428 (rounded)
Cos(65 deg) = 0.4226 approx.
at a 45 degree angle, or pi/4
As a decimal: 0.866 As a fraction: √(3)/2
Find the cosine of 38 degrees and then find its reciprocal.
It is cosine*cosine*cosine.