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一.问题的提出前不久,我班在高三第一轮复习二次函数这个内容时,老师布置一个思考题,让全班同学探究,比一比谁的解决方法多,谁的解决方法好.问题(2011,长沙二模)若函数f(x)=x2+
Shortly before the question was put forward, my class reviewed the second-order function in the first round of high school. The teacher arranged a question of thinking so that the whole class could explore more than anyone who could solve the problem and who should work out a solution. Problem (2011, Changsha second mode) If the function f (x) = x2 +