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If the system of equations ax+hy+g=0 …...

If the system of equations
ax+hy+g=0 ….(i)
hx+by+f=0…(ii)
and `ax^2+2hxy+by^2 + 2gx+ 2fy+c+t=0`….(iii)
has a unique solution and `(abc+2fgh-af^2-bg^2-ch^2)/(h^2-ab)=8` , find the value of 't'.

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The correct Answer is:
8
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