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Let a > 0, b > 0 and c > 0. Then both the roots of the equation ax 2 + bx + c = 0: (A) are real and negative (B) have negative real parts (C) have positive real parts (D) none of these



Let a > 0, b > 0 and c > 0. Then both the roots of the equation
ax2 + bx + c = 0:


        (A)    are real and negative


        (B)    have negative real parts


        (C)    have positive real parts


        (D)    none of these


Grade:10

2 Answers

Simran Bhatia
348 Points
10 years ago

jitender lakhanpal
62 Points
10 years ago

hi hrishant

ans. D)

nothing can be said about the nature of roots as the discriminant can take any value 

for eg b = 1 , a = 2 ,c = 3 D<0 so the roots would be imaginary 

and for b = 5 a = 1 c = 1  D >0 so the roots would be real

so niether of the options given is can be always true

jitender

askiitians expert

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