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ما هي الطريقة الأبسط لإيجاد زاوية المرجع لزاوية 160 درجة؟
ما هي طريقة إيجاد زاوية المرجع للزاوية 30 درجة؟
متى يكون سِنُّ زاوية في Quadrant III إيجابيًا؟
متى يمكن استخدام قوانين ج sin، cos، و tan في الأربع أرباع؟
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In which quadrant are sine, cosine, and tangent all positive?
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In which quadrant is the x direction negative, resulting in negative cosine and tangent?
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In which quadrant are sine and cosine negative?
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In which quadrant is sine negative and tangent positive?
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What is the reference angle for 160º?
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