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Solution inequality：
Directly input the univariate inequality (that is, the inequality containing only one variable), set the angular unit (radian or angle) of the trigonometric function, and click the "Next" button to obtain the solution set of the inequality.
It supports mathematical functions (including trigonometric functions).
Directly input the univariate inequality (that is, the inequality containing only one variable), set the angular unit (radian or angle) of the trigonometric function, and click the "Next" button to obtain the solution set of the inequality.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Inequality Computation > Answer
Overview: 3 questions will be solved this time.Among them
☆1 inequalities
☆2 equations
[ 1/3Inequality]
Assignment:Find the solution set of inequality (2.5x)*(2.5x)+(1.82x)*(1.82x) >= 8.09*8.09 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality：
( 2.5 * x ) * ( 2.5 * x ) + ( 1.82 * x ) * ( 1.82 * x ) >= 8.09 * 8.09 (1)
From inequality(1)：
x ≤ -2.616165 或 x ≥ 2.616165
The final solution set is :
x ≤ -2.616165 或 x ≥ 2.616165
[ 2/3 Equation]
Work: Find the solution of equation 2.5*2.62 = a .
Question type: Equation
Solution:Original question:
5 2 | × | 131 50 | = | a |
| Left side of the equation = | 131 20 |
131 20 | = | a |
Transposition :
| - | a | = | - | 131 20 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
131 20 | = | a |
If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
| a | = | 131 20 |
This is the solution of the equation.
[ 3/3 Equation]
Work: Find the solution of equation 1.82*2.62 = b .
Question type: Equation
Solution:Original question:
91 50 | × | 131 50 | = | b |
| Left side of the equation = | 11921 2500 |
11921 2500 | = | b |
Transposition :
| - | b | = | - | 11921 2500 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
11921 2500 | = | b |
If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
| b | = | 11921 2500 |
This is the solution of the equation.