Overview: 4 questions will be solved this time.Among them
☆4 inequalities
[ 1/4Inequality]
Assignment:Find the solution set of inequality 3x^2-7x <= 10 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
3 * x ^ 2 - 7 * x <= 10 (1)
From inequality(1):
-1 ≤ x ≤ 10/3
The final solution set is :
-1 ≤ x ≤ 10/3[ 2/4Inequality]
Assignment:Find the solution set of inequality x^2-x+1/4 >0 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
x ^ 2 - x + 1 / 4 >0 (1)
From inequality(1):
x < 1/2 或 x > 1/2
The final solution set is :
x < 1/2 或 x > 1/2[ 3/4Inequality]
Assignment:Find the solution set of inequality -2x^2+x-4 <= -3 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
-2 * x ^ 2 + x - 4 <= -3 (1)
From inequality(1):
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
The final solution set is :
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established![ 4/4Inequality]
Assignment:Find the solution set of inequality x^2-3x+4 >0 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality:
x ^ 2 - 3 * x + 4 >0 (1)
From inequality(1):
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
The final solution set is :
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!Your problem has not been solved here? Please go to the Hot Problems section!