for what value of k the equation 2x2+kx+3=0has equal roots?
Daffodilz:
x= 2 ?
if 2x^2+kx+3=0
then d=0 as it has equal roots so k^2-4*3*2=0 implies, k^2-24=0,, k^2=24,,k=root 24
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this eq .. has equal roots ...
so,Discrimination=0
for 2x^2+kx+3....
D=b2-4ac
0=k2-4*2*3
0=k2-24
24=k2
k=√24
k=√2*2*2*3
k=2√6.......ans
so,Discrimination=0
for 2x^2+kx+3....
D=b2-4ac
0=k2-4*2*3
0=k2-24
24=k2
k=√24
k=√2*2*2*3
k=2√6.......ans
thanks very much
ur wlcm....
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0
Refer this : http://brainly.in/question/893392
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