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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation -1/2*(-sqrt(5)-1)^2-3/2*(-sqrt(5)-1)+2 .
    Question type: Mathematical calculation
    Solution:
          -1/2*(-sqrt(5)-1)^2-3/2*(-sqrt(5)-1)+2
        =-1/2*(-sqrt5-1)^2-3/2*(-sqrt(5)-1)+2
        =-1/2*(-3.236068)^2-3/2*(-sqrt(5)-1)+2
        =-1/2*(-3.236068)^2-3/2*(-sqrt5-1)+2
        =-1/2*(-3.236068)^2-3/2*(-3.236068)+2
        =-1/2*10.472136100623999-3/2*(-3.236068)+2
        =-0.5*10.472136100623999-3/2*(-3.236068)+2
        =(-5.236068)-3/2*(-3.236068)+2
        =-5.236068-1.5*(-3.236068)+2
        =-5.236068-(-4.854102)+2
        =-0.381966+2
        =1.618034

    Answer:-1/2*(-sqrt(5)-1)^2-3/2*(-sqrt(5)-1)+2=1.618034


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