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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation sqrt(0.2*(0.1-0.175)^2+0.3*(0.15-0.175)^2+0.3*(0.2-0.175)^2+0.2*(0.25-0.175)^2) .
    Question type: Mathematical calculation
    Solution:
          sqrt(0.2*(0.1-0.175)^2+0.3*(0.15-0.175)^2+0.3*(0.2-0.175)^2+0.2*(0.25-0.175)^2)
        =sqrt(0.2*(-0.075)^2+0.3*(0.15-0.175)^2+0.3*(0.2-0.175)^2+0.2*(0.25-0.175)^2)
        =sqrt(0.2*(-0.075)^2+0.3*(-0.025)^2+0.3*(0.2-0.175)^2+0.2*(0.25-0.175)^2)
        =sqrt(0.2*(-0.075)^2+0.3*(-0.025)^2+0.3*0.025^2+0.2*(0.25-0.175)^2)
        =sqrt(0.2*(-0.075)^2+0.3*(-0.025)^2+0.3*0.025^2+0.2*0.075^2)
        =sqrt0.002626
        =0.051245

    Answer:sqrt(0.2*(0.1-0.175)^2+0.3*(0.15-0.175)^2+0.3*(0.2-0.175)^2+0.2*(0.25-0.175)^2)=0.051245


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