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IF both the roots of the quadratic equ...

IF both the roots of the quadratic equation `x^2-2kx+k^2 +k -5=0` are less than 5, then k lies in the interval

A

`(5,6]`

B

`(6,oo)`

C

`(-oo , 4)`

D

`[4,5]`

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
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  2. The value of 'a' for which one root of the quadratric equation ...

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  4. If roots of the equation x^2-bx +c=0 be two consecutive intege...

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  5. p and q are distinct prime numbers and if the equation x^2 -px ...

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  8. The roots of 3x^2 + 4x -7=0 are

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  9. The roots of 5x^2 -3x +2=0 are

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  10. The roots of the equation (b-c) x^2 +(c-a)x+(a-b)=0are

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  11. IF ad ne bc then the roots of (a^2 +b^2)x^2+2x(ac+bd) +(c^2 +d^2)...

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  12. For p,q in R, the roots of (p^2+q^2)x^2+2(p+q)x+2=0 are

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  13. The roots of the equation 2(a ^2 +b^2)x^2+2(a+b)x+1=0 are

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  14. The roots of (x-b)(x-c) +(x-a)(x-c) +(x-a) (x-b)=0 are

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  15. The roots of (x-a) (x-a -1) +(x-a-1) +(x-a-2) +(x-a) (x-a-2)=0 a in...

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  16. IF l,m,n are rational the roots of (m +n) x^2 -(l+m+n)x+l =0 are

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  17. If the roots of a^2x^2 + 2 bx + c^2 =0 are imaginary then the ro...

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  18. IF the roots of (a^2 +b^2 ) x^2 +2 (bc + ad ) x +(c^2+d^2)=0 ar...

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  19. IF m,n,K are rational and m=k +(n)/(k) then the roots of x^2 ...

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  20. IF alpha , beta are the roots of x^2 +px +q=0 and alpha ^4 ...

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