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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-2)/(x^2-6x-7) >0 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
( x - 2 ) / ( x ^ 2 - 6 * x - 7 ) >0 (1)
From the definition field of divisor
x ^ 2 - 6 * x - 7 ≠ 0 (2 )
From inequality(1):
-1 < x < 2 或 x > 7
From inequality(2):
x < -1 或 -1 < x < 7 或 x > 7
From inequalities (1) and (2)
-1 < x < 2 或 x > 7 (3)
The final solution set is :
-1 < x < 2 或 x > 7Your problem has not been solved here? Please take a look at the hot problems !