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If r is the ratio of the roots of ax...

If r is the ratio of the roots of `ax ^2 + bx +C=0` then `((r +1)^2)/(r )`=

A

`(b)/(ac)`

B

`(2b)/(a)`

C

`(b^(2))/(ac)`

D

`(2b)/(c)`

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-QUADRATIC EQUATIONS & EXPRESSIONS-EXERCISE-I
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  2. If alpha, beta are the roots of x^(2)+2x+5=0, then the equation whose ...

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  3. If r is the ratio of the roots of ax ^2 + bx +C=0 then ((r +1)^2)...

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  4. If one root of x^(2)+kx+27=0 may be triple the other, then k=

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  5. If one root of x^2+px+1=0 is square that of the other thenp=

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  6. If one root of x^(2)+px+q=0 may be the square pf the other, then p^(3)...

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  7. The quadratic equation with rational coefficients whose one root is 3+...

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  8. If 3+4i is a root of equation x^(2)+px+q=0 where p, q in R then

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  13. If the roots of (x^(2)-bx)/(ax-c)=(k-1)/(k+1) are numerically equal bu...

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  14. The least integral value of 'a' for which the equation x^(2)-2(a-1)x+(...

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  15. The value of 'a' for which the equation 3x^(2)+2(a^(2)+1)x+(a^(2)-3a+2...

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  16. If the roots ax^(2)+bx+c=0 are both negative and b lt 0, then

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  17. The coefficient of x in a quadratic equation x^2 + px +q=0 was ...

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  18. In finding the roots of x^(2) + px + q = 0 the coefficient of x was ta...

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  19. IF the harmonic mean between the roots of (5 + sqrt(2))x^2-bx +...

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  20. The equation x-(2)/(x-1) =1-(2)/(x-1) has

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