Multiple Choice Questions on If then 9x2 12xycosq 4y2 ........... for 11th Standard Preparation

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Multiple Choice Questions

If then 9x2 12xycosq 4y2 ...........

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    If cos^{-1}\frac{x}{2}cos^{-1}\frac{y}{3}=\theta,then  9x2 = 12xycosq+4y2=

                                      

    \theta36sin2 

    Correct Answer

    36cos2\theta?                         

    Incorrect Answer

    6 tan2\theta?                          

    Incorrect Answer

    none of these

    Incorrect Answer
    Explanation:

    \theta36sin2 

    By: Swaminath Yadav
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