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Without solving, examine the nature of the roots of the equations : (i) 5x^(2)-6x+7=0 (ii) x^(2)+6x+9=0 (iii) 2x^(2)+6x+3=0

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Answer :(i) The roots are not REAL i.e. the roots are IMAGINARY.
(ii) The root are real and EQUAL.
(III) The roots are real and unequal.


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