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If A and B are any two sets, then A uu (...

If A and B are any two sets, then `A uu (A nn B)` is equal to

A

A

B

`AcapB`

C

B

D

`phi`

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JBD PUBLICATION-MODEL PAPER (13)-EXERCISE
  1. If A and B are any two sets, then A uu (A nn B) is equal to

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  2. If x ne 1 and f(x) = ( x + 1)/( x - 1) is a real function, then f(f(...

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  3. If theta and phi are acute angles such that costheta=13/14 and cosphi=...

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  4. If one root of the equation x^2+px+12=0 is 4 , while the equation x^2+...

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  5. How many words, with or without meaning can be made from the letters o...

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  6. Let the angles A, B, C of triangle ABC be in A.P. and let b:c= sqrt3:s...

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  7. If the lines ax+12y+1=0, bx+13y+1=0 and cx+14y+1=0 are concurrent, the...

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  8. The equation of a parabola whose focus is (-3,0) and dielectrix is x+5...

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  9. Let y=x/(x+5), then value of (dy)/(dx) is:

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  10. If P(A)=P(B)=x and P(AcapB)=P(barAcapbarB)=1/3, then the value of x is...

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  11. In a circle of diameter 40 cm, the length of a chord is 20 cm. Find th...

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  12. Prove the following: cos^2 2x - cos^2 6x = sin 4x sin 8x

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  13. Simplify: (1-i)^2/(1+i)^2

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  14. Show that the middle term in the expansion of (1+x)^(2n) is (1.3.5….(2...

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  15. Write the general term in the expansion of (x^2-y)^6.

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  16. Using section formula, prove that the three points (-4,6,10), (2,4,6) ...

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  17. Find the component statement of the following and check whether they a...

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  18. In a group of 65 people, 40 like cricket, 10 like both cricket and ten...

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  19. If f (x) =x^3-1/x^3, find the value of f (x) +f (1/x).

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  20. Prove that:(tan^2 20- tan^2 theta)/(1- tan^2 20 tan^2 theta)=tan30 tan...

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