cos(25o)
= 0.906307787
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cos 34o ≈ 0.829 cos 34 = 0.86074
cos 315 degrees is 4th quadrant same as cos (-45) degrees which is +0.7071
cos67,5
The cosine of 70 degrees is 0.34202014332567.
0.25 to the second decimal place.