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If X and Y are two sets such that X ∪ Y ...

If X and Y are two sets such that `X ∪ Y` has 18 elements, X has 8 elements and Y has 15 elements , how many elements does `X ∩ Y` have?

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OSWAAL PUBLICATION-SOLVED PAPER 2017-1-EXERCISE
  1. Evaluateunderset(x rarr 0) lim [((x+1)^5-1)/x].

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  2. A letter is chosen at random from the word "ASSASSINATION" . Find the ...

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  3. If X and Y are two sets such that X ∪ Y has 18 elements, X has 8 eleme...

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  4. If A={-1,1}, find A xx A xx A

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  5. Let f(x) = sqrt(x) and g(x) = x find (i) (f + g) x (ii) (fg) x

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  6. Let f(x) = sqrt(x) and g(x) = x find (i) (f + g) x (ii) (fg) x

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  7. The minute hand of a clock is 2.1cm long. How far does its tip move is...

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  8. Find the general solutions of 2 cos ^(2) x - 3 sin x = 0

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  9. Evaluate underset (x rarr 1)lim(x^15-1)/(x^10-1).

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  10. Find the median for the following data. 3,9,5,10,18,4,7,19,21.

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  11. Write the converse and contrapositive of 'If a parallelogram is a squ...

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  12. On her vacations Veena visits cities A,B C and D in random order . Wha...

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  13. In the triangle ABC with vertices A (2, 3) , B (4, -1) " and " C (1, ...

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  14. Find the distance between two parallel lines 3x+4y+5=0 and 6x+8y+2=0

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  15. Solve 4x+3 lt 6x+7.

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  16. Show that the points P(- 2 , 3, 5) , Q (1, 2, 3) and R(7, 0, -1) are c...

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  17. Express 1+isqrt3 in polar form

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  18. In a survey of 600 students in a school, 150 students were found to be...

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  19. Define a signum function. Write range, also draw the graph of the func...

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  20. tan4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

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