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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 (4k/(k+1))^2 >2.4 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
( 4 * k / ( k + 1 ) ) ^ 2 >2.4 (1)
From the definition field of divisor
x + 1 ≠ 0 (2 )
From inequality(1):
k < -0.279175 或 k > 0.632116
From inequality(2):
k < -1 或 k > -1
From inequalities (1) and (2)
k < -1 或 -1 < k < -0.279175 或 k > 0.632116 (3)
The final solution set is :
k < -1 或 -1 < k < -0.279175 或 k > 0.632116Your problem has not been solved here? Please take a look at the hot problems !