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 ln(a^2-4) <2-(a^2-4)^(1/2) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality:
         ln ( a ^ 2 - 4 ) <2 - ( a ^ 2 - 4 ) ^ ( 1 / 2 )         (1)
        From the definition field of ln
         x ^ 2 - 4 > 0        (2 )

    From inequality(1):
         -3.374768 < a < 3.374768
    From inequality(2):
         a < -2 或  a > 2

    From inequalities (1) and (2)
         -3.374768 < a < -2 或  2 < a < 3.374768     (3)

    The final solution set is :

         -3.374768 < a < -2 或  2 < a < 3.374768




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


Return