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IF 2x ^(1//3)+2x ^(-1//3)=5 then x=...

IF ` 2x ^(1//3)+2x ^(-1//3)`=5 then x=

A

`3 or 1//9`

B

` 5 or 1//5`

C

`2 or 1//5`

D

`8 or 1//8`

Text Solution

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The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
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  2. the solution set of x^(2) +x -2 =0 is

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  3. IF 2x ^(1//3)+2x ^(-1//3)=5 then x=

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  4. IF (a + x ) ^(2//3) + (a - x ) ^(2//3) = 4 ( a ^2 - x ^2 )^(...

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  5. The number of rational roots of (2x +3)(2x +5) (x-1) (X-2)=30 is

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  6. The solution set of (x-1) (X-3) (x-5) (x-7) =9 is

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  7. The roots of (1)/(x-1) (1)/(x-2)=(1)/(x-3) are

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

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  9. If (x)/(b) + (b) /(x) =(a)/(b)+(b)/(a) then x=

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  10. A root of the equation (a+c)/(x+a)+(b+c)/(x+b)=(2(a+b+c))/(x+a+b) i...

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  11. The solution set of (x+(1)/(x) ) ^2 -3/2 (x-(1)/(x)) =4 when x n...

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  12. Solve 2(x+(1)/(x))^(2)-7(x+(1)/(x))+5=0," when "x ne 0

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  13. Solve (x^(2)+(1)/(x^(2)))-5(x+(1)/(x))+6=0," when "x ne0

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  14. If (sqrt(1 +x^2)+sqrt(1-x^2))/(sqrt(1+x^2)-sqrt(1-x^2))=3 then x=

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  15. IF (x+sqrt(12a-x))/(x-sqrt(12a-x))=(sqrt(a)+1)/((sqrt(a)-1) , then x...

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  16. IF sqrt((x)/(1-x))+sqrt((1-x)/(x)) =2 (1)/(6) then x=

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  17. sqrt((x)/(x-3))+sqrt((x-3)/(x))=(5)/(2)," when "x ne 0and x ne 3

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  18. sqrt((3x)/(x+1))+sqrt((x+1)/(3x))=2," when "x ne 0and x ne -1

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  19. If 2^x + 27 (2^(-x)) = 12 then x=

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  20. If 3^(2x)-3^(x+1)- 3^(x-1) + 1=0 then x=

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