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(i) Find the values of k for which the quadratic equation 3k+1x2+2k+1x+1=0 has real and equal roots. [CBSE 2014](ii) Find the value of k for which the equation x2+k2x+k-1+2=0 has real and equal roots. [CBSE 2017]

Answer» (i) Find the values of k for which the quadratic equation 3k+1x2+2k+1x+1=0 has real and equal roots. [CBSE 2014]

(ii) Find the value of k for which the equation x2+k2x+k-1+2=0 has real and equal roots. [CBSE 2017]


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