Write the nature of roots of x2
+ x + 1 = 0.
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Answer:
as det is negative.
The are imaginary
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x²+X+1= 0
Comparing the given polynomial with ax²+bx +c =0
a= 1, b=1 and c= 1
we know
D=b²-4ac
D= 1²-4(1)(1)= 1-4=-3
Here, D<0
Therefore, The roots are imaginary.
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