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If x+1/x=2,then the value of x^2+1/x^2 i...

If `x+1/x=2`,then the value of `x^2+1/x^2` is :

A

6

B

4

C

2

D

0

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QUANTUM CAT-NUMBER SYSTEM-QUESTION BANK
  1. The remaider of (2^(59!))/(255) is :

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  2. Find the last two digits of 64^81

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  3. If x+1/x=2,then the value of x^2+1/x^2 is :

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  4. If a=24, b=26, c=28, then the value of a^2+b^2+c^2-ab-bc-ac will be :

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  5. If (a^2+b^2)^3=(a^3+b^3)^2 and ab ne0 then (a/b+b/a)^6 is equal to :

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  6. If x-y=1,then the value of x^3-y^3-3xy will be :

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  7. If x=1234,y=4321,z=-5555,what is the value of x^2 /( y z)+y^2/(zx)+z^2...

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  8. Find the remainder when 2^0+2^1+2^2+...+2^255 is divided by 255.

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  9. Among the expression (1 - 3p), [1 - (3P)^(2)], [1 - (3P)^(3)] and [1 -...

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

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  11. If x-1/x=2, then the value of x^4+1/x^4 is :

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

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  13. The sum of two numbers is 9 and the sum of their squares is 41.The num...

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  14. The square root of 625

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  15. The value of ((119)^2 + (119)(111) + (111)^2)/((119)^3 - (111)^3) is :

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  16. Simplify : ((1.5)^(3)+(4.7)^(3)+(3.8)^(3)-3xx1.5xx4.7xx3.8)/((1.5)^(2)...

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  17. 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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  18. The expression (a+b-c)^3+(a-b+c)^3- 8a^3 is equal to: व्यंजक (a+b-c)...

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  19. If a+b+c=11, a^2+b^2+c^2=51,what is the value of ab+bc+ac?

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  20. If x + y + z = 0, then the value of (x^2)/(yz) + (y^2)/(zx) + (z^2)/(x...

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