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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-20

  • question_answer
    If \[\sin \theta \] and \[\cos \theta \]are the roots of the equation \[a{{x}^{2}}+x+c=0\] where \[a\ne 0\], then which one of the following is true?

    A)  \[{{a}^{2}}-2ac=a\]              

    B)  \[{{a}^{2}}+2c=1\]

    C)  \[{{a}^{2}}+2ac=1\] 

    D)  \[{{a}^{2}}-2ac=1\]

    E)  None of these

    Correct Answer: C

    Solution :

     Not Available   


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