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一、不等式的五个知识要点1.不等式的性质(1)若a>b,则bb,b>c,贝a>c;(3)若a>b,则a+c>b+c;(4)若a>b,c>0,则ac>bc,若a>b,c<0,则acb,c>d,则a+c>b+d;
1. Five Knowledge Points of Inequality 1. Properties of inequalities (1) If a>b, then bb, b>c, 贝a>c; (3) if a> b, then a + c> b + c; (4) If a> b, c> 0, then ac> bc, if a> b, c <0, then ac b, c>d, then a+c>b+d;