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If a and b are roots of the equation x...

If `a` and `b` are roots of the equation `x^2+a x+b=0` , then `a+b=`
(a) 1 (b) 2 (c) `-2` (d) `-1`

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RD SHARMA ENGLISH-QUADRATIC EQUATIONS-All Questions
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  5. If the equation (a^2+b^2)x^2-2(a c+b d)x+c^2+d^2=0 has equal roots, th...

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  6. If the sum of the roots of the equation x^2-x=lambda(2x-1) is zero, ...

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  7. If x=1 is a common root of a x^2+a x+2=0 and x^2+x+b=0 then, a b= ...

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  8. The value of c for which the equation a x^2+2b x+c=0 has equal r...

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  14. If a and b are roots of the equation x^2+a x+b=0 , then a+b= (a) ...

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  15. A quadratic equation whose one root is 2 and the sum of whose roots ...

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  19. If 1 is a common root of the equations ay^2+ay+3=0 and y^2+y+b=0,then ...

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