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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 1/2*((5-k)-sqrt((k-3)^2+20)) >3 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
1 / 2 * ( ( 5 - k ) - sqrt ( ( k - 3 ) ^ 2 + 20 ) ) >3 (1)
From the definition field of √
( x - 3 ) ^ 2 + 20 ≥ 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 ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
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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