Q257-Q300 Inequality

السلام عليكم ورحمة الله وبركاته
حل اول معتمد على مجموهة الحل للتمرين السابق
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وهذا حل اخر تقليدى
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؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟

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