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Overview: 1 questions will be solved this time.Among them
☆1 inequalities
[ 1/1Inequality]
Assignment:Find the solution set of inequality 1-x <2/x+1 <1+x .
Question type: Inequality
Solution:
The inequality can be reduced to 2 inequalities:
1 - x <2 / x + 1 (1)
2 / x + 1 <1 + x (2)
From the definition field of divisor
x ≠ 0 (3 )
From inequality(1):
x > 0
From inequality(2):
-√2 < x < 0 或 x > √2
From inequality(3):
x < 0 或 x > 0
From inequalities (1) and (2)
x > √2 (4)
From inequalities (3) and (4)
x > √2 (5)
The final solution set is :
x > √2Your problem has not been solved here? Please take a look at the hot problems !