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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.
    Current location:Equations > Monovariate Equation > The history of univariate equation calculation > Answer

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

[ 1/1 Equation]
    Work: Find the solution of equation 1/(s+1) = 1/s+1/(s+2)+1/(s+5)+1/(s+10) .
    Question type: Equation
    Solution:Original question:
     1 ÷ ( s + 1) = 1 ÷ s + 1 ÷ ( s + 2) + 1 ÷ ( s + 5) + 1 ÷ ( s + 10)
     Multiply both sides of the equation by:( s + 1) ,   s
     1 s = 1( s + 1) + 1 ÷ ( s + 2) × ( s + 1) s + 1 ÷ ( s + 5) × ( s + 1) s + 1 ÷ ( s + 10)
    Remove a bracket on the right of the equation::
     1 s = 1 s + 1 × 1 + 1 ÷ ( s + 2) × ( s + 1) s + 1 ÷ ( s + 5) × ( s + 1) s
    The equation is reduced to :
     1 s = 1 s + 1 + 1 ÷ ( s + 2) × ( s + 1) s + 1 ÷ ( s + 5) × ( s + 1) s + 1
     Multiply both sides of the equation by:( s + 2)
     1 s ( s + 2) = 1 s ( s + 2) + 1( s + 2) + 1( s + 1) s + 1 ÷ ( s + 5) × ( s + 1) s
    Remove a bracket on the left of the equation:
     1 s s + 1 s × 2 = 1 s ( s + 2) + 1( s + 2) + 1( s + 1) s + 1 ÷ ( s + 5) × ( s + 1) s
    Remove a bracket on the right of the equation::
     1 s s + 1 s × 2 = 1 s s + 1 s × 2 + 1( s + 2) + 1( s + 1) s + 1
    The equation is reduced to :
     1 s s + 2 s = 1 s s + 2 s + 1( s + 2) + 1( s + 1) s + 1 ÷ ( s + 5)
     Multiply both sides of the equation by:( s + 5)
     1 s s ( s + 5) + 2 s ( s + 5) = 1 s s ( s + 5) + 2 s ( s + 5) + 1( s + 2)( s + 5) + 1( s + 1)
    Remove a bracket on the left of the equation:
     1 s s s + 1 s s × 5 + 2 s ( s + 5) = 1 s s ( s + 5) + 2 s ( s + 5) + 1( s + 2)( s + 5) + 1( s + 1)
    Remove a bracket on the right of the equation::
     1 s s s + 1 s s × 5 + 2 s ( s + 5) = 1 s s s + 1 s s × 5 + 2 s ( s + 5) + 1
    The equation is reduced to :
     1 s s s + 5 s s + 2 s ( s + 5) = 1 s s s + 5 s s + 2 s ( s + 5) + 1( s + 2)
     Multiply both sides of the equation by:( s + 10)
     1 s s s ( s + 10) + 5 s s ( s + 10) + 2 s ( s + 5) = 1 s s s ( s + 10) + 5 s s ( s + 10) + 2 s ( s + 5)
    Remove a bracket on the left of the equation:
     1 s s s s + 1 s s s × 10 + 5 s = 1 s s s ( s + 10) + 5 s s ( s + 10) + 2 s ( s + 5)
    Remove a bracket on the right of the equation::
     1 s s s s + 1 s s s × 10 + 5 s = 1 s s s s + 1 s s s × 10 + 5 s
    The equation is reduced to :
     1 s s s s + 10 s s s + 5 s s = 1 s s s s + 10 s s s + 5 s s
    Remove a bracket on the left of the equation:
     1 s s s s + 10 s s s + 5 s s = 1 s s s s + 10 s s s + 5 s s
    Remove a bracket on the right of the equation::
     1 s s s s + 10 s s s + 5 s s = 1 s s s s + 10 s s s + 5 s s
    The equation is reduced to :
     1 s s s s + 10 s s s + 5 s s = 1 s s s s + 10 s s s + 5 s s
    Remove a bracket on the left of the equation:
     1 s s s s + 10 s s s + 5 s s = 1 s s s s + 10 s s s + 5 s s
    Remove a bracket on the right of the equation::
     1 s s s s + 10 s s s + 5 s s = 1 s s s s + 10 s s s + 5 s s

    The solution of the equation:
        s1≈-7.953046 , keep 6 decimal places
        s2≈-3.187689 , keep 6 decimal places
    
    There are 2 solution(s).


解程的详细方法请参阅:《方程的解法》



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