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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-11

  • question_answer
    The sum of roots of quadratic equation \[3-7x+5\times 2=0\]is:

    A)  \[+\frac{7}{5}\]          

    B)  \[-\frac{7}{5}\]                

    C)  \[-\frac{7}{3}\]                                

    D)  \[+\frac{7}{3}\]

    Correct Answer: A

    Solution :

                    Sum of roots in quadratic equation \[\left( a{{x}^{2}}+bx+xc \right)=-\frac{b}{a}\] So, sum of roots \[\mathbf{=}\]            


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