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JEE Main & Advanced Mathematics Rectangular Cartesian Coordinates Question Bank System of co-ordinates, Distance between two points, Section formulae

  • question_answer
    The distance of the point \[(b\cos \theta ,\,b\sin \theta )\]from origin is   [MP PET 1984]

    A) \[b\cot \theta \]

    B) \[b\]

    C) \[b\tan \theta \]

    D) \[b\sqrt{2}\]

    Correct Answer: B

    Solution :

    Distance\[=\sqrt{{{b}^{2}}{{\cos }^{2}}\theta +{{b}^{2}}{{\sin }^{2}}\theta }=b\].


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