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1教学中思考在学习新课程标准人教B版教材高中数学选修(2—2)导数及其应用一章时,我们逐步知道了对于可导函数y=f(x),可用它的导函数y=f′(x)大于零
1 Teaching Thinking When studying a new curriculum standard, we learned step by step that for the derivable function y = f (x), we can use its derivative function y = f ’(x) is greater than zero