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KVPY Sample Paper KVPY Stream-SX Model Paper-24

  • question_answer
    A line passing through the point (21, 30) are normal to the curve \[y=2\sqrt{x}\] can have the slope-

    A) 2

    B) 3    

    C) \[-\,2\]  

    D) \[-\,5\]

    Correct Answer: D

    Solution :

    The point with slope 2 and 3 are normal at \[(4,-\,4);\] \[(9,-\,6)\] where there is no curve, point of normal \[(a{{m}^{2}},-\,2am)\]


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