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sin 45* (sinπ/4)
1/(2)^½
cos 45* (cosπ/4)
1/(2)^½
sin 60* (sin π/3)
3^(1/2)/2
cos 30*(sin π/6)
3^(1/2)/2
sin 30* (sin π/6)
½
cos 60* (cos π/3)
½
tan 45* (tan π/4)
1
tan 60* (tan π/3)
3^(1/2)
tan 30* (tan π/6)
1/(3^(1/2))
