论文部分内容阅读
一、填空题(每小题2分,共30分)1.已知:lgx=-2.8752,则lgx的首数=______,尾数=_______.2.函数y=(x+1)~(1/2)/(4x~2-1)的自变量x的取值范围是
First, fill in the blanks (2 points for each question, a total of 30 points) 1. Known: lgx = -2.8752, then the first number of lgx = ______, mantissa = _______.2. Function y = (x +1) ~ (1 The range of the argument x of /2)/(4x~2-1) is