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ما قيمة cos(60°)؟...
ما قيمة cos(30°)؟...
ما قيمة tan(45°)؟...
ما قيمة tan(30°)؟...
ما قيمة sin(30°)؟...
ما قيمة cos(45°)؟...
ما قيمة sin(60°)؟...
ما قيمة tan(60°)؟...
ما قيمة sin(45°)؟...
What is sin(45°)?...
What is tan(30°)?...
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