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JEE Main & Advanced Mathematics Rectangular Cartesian Coordinates Question Bank Points related to triangle (Orthocente Circumcentre Incentre), Area of some geometrical figures Collinearity

  • question_answer
    The area of the triangle enclosed by the straight lines \[x=0,\] \[y=0\,\]and\[x+2y+3=0\]in sq. unit is

    A) \[\frac{9}{2}\]

    B) \[\frac{9}{4}\]

    C) \[\frac{3}{4}\]

    D) None of these

    Correct Answer: B

    Solution :

    \[\Delta =\frac{{{3}^{2}}}{2\times 1\times 2}=\frac{9}{4}\]. (Applying the formula given in the book)


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