Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation 177240 = 1000*[1+(i/12)^12]^192-1/(i/12)^12 .
    Question type: Equation
    Solution:
    The solution of the equation:
        i₁≈-8.890101 , keep 6 decimal places
        i₂≈8.890101 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》

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