1.

For what value of \[\lambda \]the sum of the squares of the roots of \[{{x}^{2}}+(2+\lambda )\,x-\frac{1}{2}(1+\lambda )=0\] is minimum   [AMU 1999]

A. 44230
B. 1
C. 44228
D. 44297
Answer» D. 44297


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