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11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-10

  • question_answer
    If \[A+C=2B\]then equal to \[\frac{\cos \,C-\cos A}{\sin \,A-\operatorname{sinC}}\]is equal to

    A)  cot B               

    B)  cot 2B        

    C)  tan 2B             

    D)  tan B

    Correct Answer: D

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