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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-12

  • question_answer
    The value of \[2\,({{\cot }^{2}}45{}^\circ +{{\sec }^{2}}30{}^\circ )\]\[-\,6\,({{\tan }^{2}}45{}^\circ -\cos e{{c}^{2}}60{}^\circ )\] is:

    A)  \[\frac{4}{7}\]                         

    B)  \[\frac{20}{3}\]

    C)  \[\frac{3}{20}\]                        

    D)  \[\frac{1}{3}\]

    E)  None of these

    Correct Answer: B

    Solution :

     Not Available


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