Let . Then values of for which doesn't have imaginary roots are
doesn't have imaginary roots so either roots are real and equals or roots are real and distinct so
Quadratic Expression Graph when a> 0 & D > 0 -
Real and distinct roots of
&
- wherein
Option 1)
This is incorrect
Option 2)
This is incorrect
Option 3)
This is correct
Option 4)
This is incorrect
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