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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 -k+sqrt(k^2+4k-4) >4 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
-k + sqrt ( k ^ 2 + 4 * k - 4 ) >4 (1)
From the definition field of √
x ^ 2 + 4 * x - 4 ≥ 0 (2 )
From inequality(1):
The solution set is empty, that is, within the range of real numbers, the inequality will never be established!
From inequality(2):
k ≤ -4.828427 或 k ≥ 0.828427
The final solution set is :
The solution set is empty,that is, the inequality will never be estatlished within the real number range.
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