-0.7071067812, roughly.
The cosine of 90 degrees is zero.
The cosine of 8 degrees is 0.99026806874157031508377486734485
Cosine is 0.766
The cosine of 24 degrees is 0.913
cosine(59 degrees) = 0.51504 (rounded)
cos(495) = cos(495-360) = cos(135) = -cos(180-135) = -cos(45) = -sqrt(1/2) or -1/sqrt(2)
The cosine of 90 degrees is zero.
The cosine of 8 degrees is 0.99026806874157031508377486734485
Cosine is 0.995
Cosine is 0.766
The cosine of 60 degrees is 0.5
The cosine of 24 degrees is 0.913
cosine(59 degrees) = 0.51504 (rounded)
Cosine(42 radians) = -0.399985 Cosine(42 degrees) = 0.743146
Cosine(84 radians) = -0.680023 Cosine(84 degrees) = 0.104528
The cosine of 10 degrees is 0.98480775301221. Hope I helped!
In quadrant II, the three benchmark angle measures are 90 degrees, 120 degrees, and 135 degrees. The angle of 90 degrees corresponds to the positive y-axis, while 120 degrees and 135 degrees are commonly referenced angles where sine values are positive and cosine values are negative. These angles are often used in trigonometric calculations involving the unit circle.