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1. ( √2 - √3 )^2 =

2. 2^30 + 2^30 + 2^30 + 2^30 =

3. If (x + 1/x)^2 = 3 then (x^3+1/x^3) is equal to

4. (0.1*0.1*0.1 + 0.02*0.02*0.02)/(0.2*0.2*0.2 + 0.04*0.04*0.04) is equal to

5. If (a^2 + b^2 + 1/a^2 + 1/b^2) = 4, then the value of (a^2 + b^2) will be

6. if (x + 1/x) = 2, then the value of (x^100 + 1/x^100) is:

7. if (2x + 2/x) = 1, then the value of (x^3 + 1/x^3) is

8. If A:B = 2:3, B:C = 4:5 and C:D = 5:9,then A:D is equal to

9. if x^3 + 3x^2 + 3x = 7, then x is equal to

10. What is the value of [(3x+8Y)/(x-2Y)]; if x/2y=2?