x^2+x+1=0 determine the nature of roots
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Here,a=1,b=1,c=1
so,b^2-4×a×c
=1^2-4×1×1
=1-4
=-3
hence,roots are imaginary.
so,b^2-4×a×c
=1^2-4×1×1
=1-4
=-3
hence,roots are imaginary.
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