已知a,b,c满足a+b+c=0,abc=2,且c>0,求证c≥2.

x��)�{�}���Ku�t���^�b��D�$�d[�Ĥd[#�';�$��<���b}c�ΥFz6IE��h�/��!�> �ٌ��{f=�؊�,��:��mu�uM\�&�I�F� Ʌ�-F�
2�F�� 1��~0���d[] _��Yg�K�"6� = �B��V
6("ɶ5�5�5I5`A���$[ ����f���F2��DG�f��8#};��g���Z� �D����y