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11th Class Mathematics Sample Paper Maths Olympiad Model Paper-2

  • question_answer
    The real part of \[{{(1-\cos \theta +2\,i\sin \theta )}^{-1}}\] is

    A)  \[\frac{1}{3+5\cos \theta }\]                 

    B)  \[\frac{1}{3-5\cos \theta }\]

    C)  \[\frac{1}{5-3\cos \theta }\]                   

    D)  \[\frac{1}{5+3\cos \theta }\]

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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