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Assignment:Find the solution set of inequality sqrt(sqrt(a))+sqrt(a) >sqrt(sqrt(a^2-6))+sqrt(a^2-6) .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
sqrt ( sqrt ( a ) ) + sqrt ( a ) > sqrt ( sqrt ( a ^ 2 - 6 ) ) + sqrt ( a ^ 2 - 6 ) (1)
From the definition field of √
x ≥ 0 (2 )
From the definition field of √
sqrt ( x ) ≥ 0 (3 )
From the definition field of √
x ≥ 0 (4 )
From the definition field of √
x ^ 2 - 6 ≥ 0 (5 )
From the definition field of √
sqrt ( x ^ 2 - 6 ) ≥ 0 (6 )
From the definition field of √
x ^ 2 - 6 ≥ 0 (7 )
From inequality(1):
a < 3
From inequality(2):
a ≥ 0
From inequality(3):
a ≥ 0
From inequality(4):
a ≥ 0
From inequality(5):
a ≤ -√6 或 a ≥ √6
From inequality(6):
a ≥ √6
From inequality(7):
a ≤ -√6 或 a ≥ √6
From inequalities (1) and (2)
0 ≤ a < 3 (8)
From inequalities (3) and (8)
0 ≤ a < 3 (9)
From inequalities (4) and (9)
0 ≤ a < 3 (10)
From inequalities (5) and (10)
√6 ≤ a < 3 (11)
From inequalities (6) and (11)
√6 ≤ a < 3 (12)
From inequalities (7) and (12)
√6 ≤ a < 3 (13)
The final solution set is :
√6 ≤ a < 3Your problem has not been solved here? Please take a look at the hot problems !