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10th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-14

  • question_answer
    If \[x=\operatorname{cosec}\theta -\sin \theta \] and \[y=\sec \theta -\cos \theta ,\]and, then the value of \[{{x}^{2}}{{y}^{2}}({{x}^{2}}\,+\,{{y}^{2}}\,+3)\] is

    A) 0                                

    B) 1

    C) 2                                

    D) 3

    E) None of these

    Correct Answer: B

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