10th Class Mathematics Solved Paper - Mathematics-2018

  • question_answer 3) Find the distance of a point \[P(x,y)\] from the origin.

    Answer:

    The given point is \[P(x,y)\].
    The origin is O (0, 0)
    Distance of point P from origin,
                \[PO=\sqrt{{{\left( {{x}_{2}}-{{x}_{1}} \right)}^{2}}+{{\left( {{y}_{2}}-{{y}_{1}} \right)}^{2}}}\]
                      \[=\sqrt{{{\left( x-0 \right)}^{2}}+{{\left( y-0 \right)}^{2}}}\]
                      \[=\sqrt{{{x}^{2}}+{{y}^{2}}}\] unit


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