import math

d = 45    # 角度
a = math.radians(d)    # 轉換成弧度
s = math.sin(a)
c = math.cos(a)
t = math.tan(a)
print('rad ' + str(a))
print('sin ' + str(s))
print('cos ' + str(c))
print('tan ' + str(t))