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10th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-7

  • question_answer
    If \[\sin \theta +\cos \theta =a\] and \[\sec \theta +\operatorname{cosec}\theta =b,\] then the value of \[b\,\,({{a}^{2}}-1)\] is equal to

    A)  2a       

    B)  3a

    C)  0                                

    D)  2ab

    E)  None of these

    Correct Answer: A

    Solution :

    Not Available                


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