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Assignment:Find the solution set of inequality 0 <(10-x)÷(√((x-6)∧2+4)×√((8-3x÷2)∧2+1)) ≤1 .
Question type: Inequality
Solution:
The inequality can be reduced to 2 inequalities:
0 < ( 10 - x ) ÷ ( √ ( ( x - 6 ) ^ 2 + 4 ) × √ ( ( 8 - 3 * x ÷ 2 ) ^ 2 + 1 ) ) (1)
( 10 - x ) ÷ ( √ ( ( x - 6 ) ^ 2 + 4 ) × √ ( ( 8 - 3 * x ÷ 2 ) ^ 2 + 1 ) ) ≤1 (2)
From the definition field of √
( x - 6 ) ^ 2 + 4 ≥ 0 (3 )
From the definition field of √
( 8 - 3 * x ÷ 2 ) ^ 2 + 1 ≥ 0 (4 )
From inequality(1):
x < 10
From inequality(2):
x ≤ 4.076065 或 x ≥ 6.336305
From inequality(3):
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
From inequality(4):
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
From inequalities (1) and (2)
x ≤ 4.076065 或 6.336305 ≤ x < 10 (5)
From inequalities (3) and (5)
x ≤ 4.076065 或 6.336305 ≤ x < 10 (6)
From inequalities (4) and (6)
x ≤ 4.076065 或 6.336305 ≤ x < 10 (7)
The final solution set is :
x ≤ 4.076065 或 6.336305 ≤ x < 10Your problem has not been solved here? Please take a look at the hot problems !