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If x=(sqrt(3)+1)/(sqrt3-1)andy=(sqrt3-1)...

If `x=(sqrt(3)+1)/(sqrt3-1)andy=(sqrt3-1)/(sqrt3+1),"then "x^(2)+y^(2)` is equal to

A

14

B

13

C

15

D

10

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The correct Answer is:
A
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(2+sqrt2)/(1+sqrt3)times(1-sqrt3)/(1-sqrt3)=?

ARIHANT PUBLICATION PUNJAB-SQUARE-SQUARE ROOT AND CUBE-CUBE ROOT-Chapter Exercise
  1. Which of the following is false ?

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  2. (sqrt(8)-sqrt(4)-sqrt(2)) equals :

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  3. If x=(sqrt(3)+1)/(sqrt3-1)andy=(sqrt3-1)/(sqrt3+1),"then "x^(2)+y^(2) ...

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  4. What is the least number to be multiplied with 294 to make it a perfec...

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  5. What is the least number to be added to 8200 to make it a perfect squa...

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  6. The value of sqrt(400)+sqrt(0.04)-sqrt(0.000004) is

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  7. sqrt(3sqrt(0.004096)) is equal to

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  8. If sqrt(4096)=64 , then value of sqrt(40. 96)+sqrt(0. 4096)+sqrt(0.004...

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  9. Find the square root of 105(4)/(64).

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  10. If x = 2 + sqrt(2) and y = 2 - sqrt(2), then the value of (x^(2) - y^...

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  11. If a^(3) = 1 + 7, 4^(2) = 1 + 5 + b, 5^(3) = 1 + 8 + c, then the value...

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  12. Given that sqrt(3) = 1.732, the value of (3 + sqrt(6 ))/( 5 sqrt(3) -...

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  13. If a,b are rationals and asqrt(2)+bsqrt(3) =sqrt(98)+sqrt(108)-sqrt(...

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  14. If a=(sqrt(3)-sqrt(2))/(sqrt(3)+sqrt(2)) and b=(sqrt(3)+sqrt(2))/(sqrt...

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  15. If the expression x + 809436 xx 809438 be a perfect square, then the v...

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  16. 3sqrt(2744) div 7 is equal to

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  17. 3sqrt(1331) xx 3sqrt(216) + 3sqrt(729) + 3sqrt(64) is equal to

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  18. If (2000)^(10)=1.024xx10^(k), then the value of k is

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  19. If (125)^(2//3) xx (625)^(-1//4) = 5^(x), then the value of x is

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  20. 3sqrt(512)div 4sqrt(16)div sqrt(576)=?

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