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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-10

  • question_answer
    The value of \[2{{\sin }^{2}}90{}^\circ +2{{\cos }^{2}}60{}^\circ +2{{\sec }^{2}}45{}^\circ \] is given by:

    A)  1                                

    B)  0

    C)  \[-\,1\]                         

    D)  \[\frac{13}{2}\]

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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