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225 = 1/2√2
240 = – 1/2√3
270 = – 1
300 = – 1/2√3
315 = – 1/2√2
330 = – 1/2
360 = 0
Tambahan sedikit 0derajat - 180 derajat sebaliknya angkanya susunannya sama tapi dia positive.. ^_^