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OpenStudy (anonymous):
The value of k for which x^2-4x+k=0 has equal roots is
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ganeshie8 (ganeshie8):
hint : determinant
OpenStudy (anonymous):
b^2-4ac
OpenStudy (anonymous):
it is = 0
ganeshie8 (ganeshie8):
yup
ganeshie8 (ganeshie8):
set it equal to 0 and solve k
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