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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 (x+7)/(xx-2x+3) <1 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
( x + 7 ) / ( x * x - 2 * x + 3 ) <1 (1)
From the definition field of divisor
x * x - 2 * x + 3 ≠ 0 (2 )
From inequality(1):
x < -1 或 x > 4
From inequality(2):
x ∈ R (R为全体实数),即在实数范围内,不等式恒成立!
From inequalities (1) and (2)
x < -1 或 x > 4 (3)
The final solution set is :
x < -1 或 x > 4Your problem has not been solved here? Please take a look at the hot problems !