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if x-1/x =2 , then the value of x^4 + 1...

if `x-1/x =2 `, then the value of `x^4 + 1/x^4 ` is

A

4

B

8

C

12

D

34

Text Solution

Verified by Experts

The correct Answer is:
D
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ARIHANT SSC-FUNDAMENTALS -EXERCISE - MISCELLANEOUS
  1. If x + y + z= 0, then x^3 + y^3 + z^3 is equal to :

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  2. The remainder when x^4 - y^4 is divided by x - y is:

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  3. if x-1/x =2 , then the value of x^4 + 1/x^4 is

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  4. If the sum and the product of two numbers are 25 and 144 respectively ...

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  5. The sum of two numbers is 9 and the sum of their squares is 41. The nu...

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  6. If 3^n = 27 then 3^(n - 2) is:

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  7. If a = b^x , b = c^y, c = a^z, then xyz is :

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  8. If p = x^(1//3) + x^(-1//3), then p^3 - 3p is equal to :

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  9. The sum of squares of first ten natural numbers is :

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  10. If a language of natural numbers has binary vocabulary of 0 and 1, the...

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  11. The least number which must be substracted from 6708 to make it exactl...

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  12. Which one of the following statements is not correct ?

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  13. The value of (10 sqrt(6.25))/(sqrt(6.25) - 0.5) is:

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  14. The fundamental arithmetical operations on 2 recurring decimals can be...

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  15. Find the largest number that will divide 398, 436 and 542 leaving r...

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  16. Which one of the following statements is correct?

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  17. The value of ((1.5)^3 + (4.7)^3 + (3.8)^3 - 3 xx 1.5 xx 4.7 xx 3.8)/...

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  18. The smallest number which must be added to 803642 in order to obtain a...

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  19. Simplified value of (8.73 xx 8.73 xx 8.73 + 4.27 xx 4.27 xx 4.27)/(8.7...

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  20. If (x - 1/x) = 5, then x^3 - 1/(x^3) equals :

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