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Railways R.R.C. (Patna) Solved Paper Held on 2nd Shift 9-11-2014

  • question_answer
    If \[x=\frac{\cos \theta }{1-\sin \theta }\]then \[\frac{\cos \theta }{1+\sin \theta }\]is equal to __

    A) \[x-1\]               

    B) \[\frac{1}{x}\]

    C) \[\frac{1}{x+1}\]                      

    D) \[\frac{1}{1-x}\]

    Correct Answer: B

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