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Mathematical identity problem in senior one.
This problem is to turn the solution of inequality into a function problem.

The original formula X is a variable, and after transformation, you can solve it as a function of m as a variable.

Inequality 2x-1>; m(x & amp; Sup2- 1) can be changed to (x &;; sup2- 1)m-(2x- 1)& lt; 0?

Let f (m) = (x&; sup2- 1)m-(2x- 1)

Make inequality (x&; sup2- 1)m-(2x- 1)& lt; For the m∈ constant of 0, then:

f(-2)& lt; 0 and f (2) < 0? ((adopting the thinking method of attribute combination))

That is, (x&; sup2- 1)*(-2)-(2x- 1)& lt; 0 and (x&; sup2- 1)* 2-(2x- 1)& lt; 0

Solution:? (- 1+√7)/2 & lt; x & lt( 1+√3)/2

The formula in the penultimate line above can be listed with reference to the figure below.