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10th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-3

  • question_answer
    Evaluate\[\frac{2}{3}\,\,({{\cos }^{4}}30{}^\circ -{{\sin }^{4}}45{}^\circ )-3\,\,({{\sin }^{2}}60{}^\circ -{{\sec }^{2}}45{}^\circ )\]\[+\frac{1}{4}{{\cot }^{2}}30{}^\circ \].

    A)  \[4\,\,\frac{17}{24}\]

    B)  \[3\,\,\frac{17}{24}\]

    C)  \[4\,\,\frac{-17}{24}\]               

    D)  \[5\,\,\frac{17}{24}\]

    E)  None of these

    Correct Answer: A

    Solution :

    Not Available                


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