f(x)-g(x)>0
Let h(x)= f(x)-g(x)
Become h (x) gt; 0
If the continuous function is at a certain point >: 0, the function value is >; 0。 or vice versa, Dallas to the auditorium
Grade eight students are in a transitional period from thinking in images to abstract thinking. Therefore, in teaching, students first observe a