2012高考备战数学九大模块易错易混考点78条（2012 preparing for the entrance of nine modules Mathematics easily mixed point 78）.docVIP

2012高考备战数学九大模块易错易混考点78条（2012 preparing for the entrance of nine modules Mathematics easily mixed point 78） 2012 preparing for the entrance of nine modules: Mathematics easily mixed point 78 Source: Sina blog 2011-09-08 16:52:50 Tags: [mathematics] college entrance examination A set of functions, and 1. sets of pay and complement, dont forget to complete special case and the empty set, dont forget to solve with the axis and Venn diagram. 2. in the application conditions, easy to ignore the A is empty. 3. you will solve the problem with the complement of the idea? 4. what is the difference between the simple proposition and proposition? What is the relationship between the four kinds of propositions? How to determine the necessary and sufficient conditions? 5. do you know the difference between proposition and propositional negation form. The 6. problem solving and function related to the domain is easy to ignore the principle of priority. 7. parity judgment function, easy to ignore the test function domain is symmetric about the origin. Formula 8. find a function and a function of the inverse function, easy to ignore the annotation domain of the function. 9. of the original function in the interval -a, a on increasing, then there is a inverse function and inverse function is monotonically increasing; but a function of inverse function, this function is not necessarily monotonic. For example:. 10. you mastered the method to prove the monotonicity of the function? The definition of law (value, the difference of positive and negative judgment) and derivative method 11. for the monotonicity of the function, easy error between multiple monotone interval add symbol U and or; monotone interval can be expressed in collection or inequality. The definition of domain 12. function must first seek function. 13. how to use the monotonicity and parity problem solving? The comparison of the function value; the solution of abstract function inequality; the range of parameters (consta