Mathematics
         
语言:中文    Language:English
Mathematical calculation:
    Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
    It supports mathematical functions (including trigonometric functions).
    Current location:Mathematical operation > History of Mathematical Computation > Answer

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

[1/1 Formula]
    Work: Calculate the value of equation (-20%-17.5%)^2×25%+(10%-17.5%)^2×25%+(30%-17.5%)^2×25%+(50%-17.5%)^2×25% .
    Question type: Mathematical calculation
    Solution:
          (-20%-17.5%)^2×25%+(10%-17.5%)^2×25%+(30%-17.5%)^2×25%+(50%-17.5%)^2×25%
        =-0.375^2×25%+(10%-17.5%)^2×25%+(30%-17.5%)^2×25%+(50%-17.5%)^2×25%
        =-0.375^2×25%+(-0.075)^2×25%+(30%-17.5%)^2×25%+(50%-17.5%)^2×25%
        =-0.375^2×25%+(-0.075)^2×25%+0.125^2×25%+(50%-17.5%)^2×25%
        =-0.375^2×25%+(-0.075)^2×25%+0.125^2×25%+0.325^2×25%
        =-0.375^2×0.25+-0.075^2×25%+0.125^2×25%+0.325^2×25%
        =-0.375^2×0.25+-0.075^2×0.25+0.125^2×25%+0.325^2×25%
        =-0.375^2×0.25+-0.075^2×0.25+0.125^2×0.25+0.325^2×25%
        =-0.375^2×0.25+-0.075^2×0.25+0.125^2×0.25+0.325^2×0.25
        =0.140625×0.25+(-0.075)^2×0.25+0.125^2×0.25+0.325^2×0.25
        =0.140625×0.25+0.005625×0.25+0.125^2×0.25+0.325^2×0.25
        =0.140625×0.25+0.005625×0.25+0.015625×0.25+0.325^2×0.25
        =0.140625×0.25+0.005625×0.25+0.015625×0.25+0.105625×0.25
        =0.035156+0.005625×0.25+0.015625×0.25+0.105625×0.25
        =0.035156+0.001406+0.015625×0.25+0.105625×0.25
        =0.035156+0.001406+0.003906+0.105625×0.25
        =0.035156+0.001406+0.003906+0.026406
        =0.036562+0.003906+0.026406
        =0.040468+0.026406
        =0.066874

    Answer:(-20%-17.5%)^2×25%+(10%-17.5%)^2×25%+(30%-17.5%)^2×25%+(50%-17.5%)^2×25%=0.066874


Your problem has not been solved here? Please go to the Hot Problems section!





  New addition:Lenders ToolBox module(Specific location:Math OP > Lenders ToolBox ),welcome。