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Solve sqrt(x+5)sqrt(x+21)=sqrt(6x+40.)...

Solve `sqrt(x+5)sqrt(x+21)=sqrt(6x+40.)`

A

1

B

2

C

4

D

6

Text Solution

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The correct Answer is:
C
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ARIHANT SSC-THEORY OF EQUATIONS-INTRODUCTORY EXERCISE - 14.1
  1. 6((y-3)/(2y+1))+1=5sqrt((y-3)/(2y+1)), y ne (1)/(2):

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  2. (x+2)(x-5)(x-6)(x+1)=144:

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  3. Solve sqrt(x+5)sqrt(x+21)=sqrt(6x+40.)

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  4. हल कीजिए: 2(x^(2)+1/x^(2))-3(x+1/x)-1=0

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  5. sqrt(x/(1-x))+sqrt((1-x)/x)=13/6

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  6. sqrt(2x^(2)-2x+1)-2x+3=0:

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  7. sqrt(x^(2)-9x+20)-sqrt(x^(2)-12x+32)=sqrt(2x^(2)-25x+68):

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  8. (x-(1)/(x))^(2)+8(x+(1)/(x))=29, x ne0:

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  9. ((1)/(x+1)+(1)/(x+5))=((1)/(x+2)+(1)/(x+4)):

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  10. Determine k such that the quadratic equation x^(2)+7(3+2k)-2x(1+3k)=0 ...

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  11. Discriminant of the equation -3x^(2)+2x-8=0 is :

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  12. The nature of the roots of the equation x^(2)-5x+7=0 is

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  13. The roots of a^(2)x^(2)+abx+b^(2),ane0 are :

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  14. The equal x^(2)-px+q=0, p,q, in R has no real roots if :

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  15. Determine the value of k for which the quadratic equation 4x^(2)-3kx+1...

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  16. Find the value of k such that the equation x^(2)-(k+6)x+2(2k-1)=0 has ...

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  17. Find the value of k so that the sum of the roots of the quadratic equa...

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  18. If -4 is a root of the quadratic equation x^(2)-px-4=0 and the quadrat...

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  19. Find the value of k such that the sum of the squares of the roots of t...

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  20. Find the value of p for which the quadratic equation x^(2)+p(4x+p-1)+2...

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