Govind Balaji
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 Dec29 comment Why are derivatives specified as d/dx? @JasonChen you will never find d/dx alone. The top delta corresponds to the function following the d/dx. Eg d/dx sin x . it is delta sin x /delta x. Oct2 comment How to solve this Ratio problem Yes ok now cleared Oct2 accepted How to solve this Ratio problem Oct2 awarded Editor Oct2 comment How to solve this Ratio problem Sorry I typed B instead of D, but the ratio of passengers is 1:50, So if x passengers travel by Ist class , 50x will travel in IInd class. Oct2 revised How to solve this Ratio problem edited body Oct2 comment How to solve this Ratio problem Sorry for the tag, I saw no other suitable tag for this question Oct2 asked How to solve this Ratio problem Mar28 awarded Scholar Mar28 accepted Solving the algebraic equation Mar28 comment Solving the algebraic equation I am not clear about how $x^2-40x+400$ becomes $(x-20)(x-20)$.Please explain it too. Mar28 comment Solving the algebraic equation No, I did not give the full equation here .The actual problem is $$x={{(2{(x-10))}}{({({(x-5)}-{(x-10)})}{({({(x-5)}-{({(x-10)}-1})})})}\over x}$$ Mar28 awarded Supporter Mar28 comment Solving the algebraic equation Please show your way by including the calculation process, for each step Mar28 asked Solving the algebraic equation