Equations
Fold
Math OP
Unfold
Linear algebra
Unfold
On line Solution of Monovariate Equation：
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Current location：Equations > Monovariate Equation > The history of univariate equation calculation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 inequalities
[ 1/1Inequality]
Assignment:Find the solution set of inequality lna <-1 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality：
ln a < -1 (1)
From the definition field of ln
x > 0 (2 )
From inequality(1)：
a < 0.367879
From inequality(2)：
a ＞ 0
From inequalities (1) and (2)
0 < a < 0.367879 (3)
The final solution set is :
0 < a < 0.367879