2. Sample Papers
  3. 9th Class
  4. Mathematics

9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-9

  • question_answer
    If \[tan\,A=n\text{ }tan\,B\] and \[sin\,A=m\text{ }sin\,B,\] then the value of \[{{\cos }^{2}}A\] is

    A)  \[\frac{{{m}^{2}}+1}{{{n}^{2}}+1}\]                    

    B)  \[\frac{{{m}^{2}}-1}{{{n}^{2}}-1}\]

    C)  \[\frac{{{m}^{2}}+1}{{{n}^{2}}-1}\]                      

    D)  \[\frac{{{m}^{2}}-1}{{{n}^{2}}+1}\]

    E)  None of these

    Correct Answer: B

    Solution :

     Not Available


You need to login to perform this action.
You will be redirected in 3 sec spinner