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世间万事万物,自然就是最美的,数学解题亦是如此.而衡量解题是否自然,就要看其思路是否顺其自然,解法是否干脆利落,表达是否简洁明快,感觉是否朴实无华.本文从一道模拟试题及其参考答案出发谈谈试题的自然求解.1.试题与参考答案呈现试题(江淮名校系列卷2014届高三冲刺高考模拟卷一·理21)设函数f(x)=p(x-1/x)-2lnx,g(x)=2e/x.(p是实数,e是自然对数的底数)
Everything in the world is naturally the most beautiful, as is the problem of mathematics, and whether the problem is natural or not depends on whether its ideas are natural, whether the solution is neat and neat, whether the expression is neat and concise, and whether the feeling is plain or not. A simulated test questions and reference answers to talk about the natural solution to the test questions .1 questions and reference answers presented questions (JAC prestigious series of 2014 2014 high school sprint entrance exam simulation volume a · 21) function f (x) = p (x -1 / x) -2lnx, g (x) = 2e / x. (P is a real number and e is a base number of natural logarithms)