Mathematics
语言:中文
Language:English

current location:Mathematical operation > History of Inequality Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality lnx/x^2 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality:
         ln x / x ^ 2 >0         (1)
        From the definition field of ln
        x > 0        (2 )
        From the definition field of divisor
        x ≠ 0        (3 )

    From inequality(1):
         x > 1
    From inequality(2):
         x > 0
    From inequality(3):
         x < 0 或  x > 0

    From inequalities (1) and (2)
         x > 1    (4)
    From inequalities (3) and (4)
         x > 1    (5)

    The final solution set is :

         x > 1




Your problem has not been solved here? Please take a look at the  hot problems !


Return