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The distance of points P(x, y) from origin O (0, 0) isA) \(\sqrt{x+y}\)B) \(\sqrt{x^2+y^2}\)C) x2 + y2D) x + y |
Answer» Correct option is (B) \(\sqrt{x^2+y^2}\) The distance between two points \((x_1,y_1)\;\&\;(x_2,y_2)\) is given by \(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\) \(\therefore\) Distance of point P(x, y) from origin O(0, 0) is \(d=\sqrt{(0-x)^2+(0-y)^2}\) \(=\sqrt{(-x)^2+(-y)^2}\) \(=\sqrt{x^2+y^2}\) Correct option is B) \(\sqrt{x^2+y^2}\) |
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