12th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-12

  • question_answer
    The absolute value of parameter t for which the area of the triangle whose vertices are \[A\left( -1,1,2 \right),\] \[B\left( 1,2,3 \right)\] and \[C\left( t,1,1 \right)\] is minimum, is _____.

    A)  1                                

    B)  2

    C)  3                                

    D)  4

    E)  None of these

    Correct Answer: B

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