(1+sqrt(3))/(2 sqrt(2))
Cosine(30) = sqrt(3)/2
dhasdhdsad
The cosine of 0.489957 radians is 15/17
0.965925826
Zero
0.5877852523
Mario's cosine also the exact opposite of Mario.
mostly it comes from memorization. If sin 30 = 1/2, then arcsin (1/2) = 30
Cosine cannot have this kind of high value, it ranges from -1 to +1
It doesn't exist. The maximum value of the cosine is 1.00, so no angle can have a cosine of (pi), because (pi) is more than 3.
cos(15 deg) = 0.9659, approx.
The cosine of 20 degrees is 0.93969262