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考点 4 不等式的概念与性质 1. 不等式的性质 ( 1 )对称性: a > b _________. ( 2 )传递性: a > b , b > c _________. ( 3 )加法法则: a > b , c R _____________; ( 推论) a > b , c > d _______________. ( 4 )乘法法则: a > b , c >0 _________; a > b , c <0 _________; (推论) a > b >0 , c > d >0 _________. ( 5 )乘方法则: a > b >0 a n > b n ( n N + ) . ( 6 )开方法则: a > b >0 ( n N + 且 n ≥ 1 ) .