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What is the number of ways of choosing 4...

What is the number of ways of choosing 4 cards from a pack of 52 playing cards? In how many of these
(i) four cards are of the same suit,
(ii) four cards belong to four different suits,
(iii) are face cards,
(iv) two are red cards and two are black cards,
(v) cards are of the same colour?

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OSWAAL PUBLICATION-SOLVED PAPER 2020-2-EXERCISE
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  2. Consider the experiment of rolling die. Let A be the event 'getting a ...

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  3. A committee of two persons is selected from two men and two women.What...

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  4. A committee of two persons is selected from two men and two women. Wha...

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  5. Define a modulus function.If the function f:R rarr R is defined by f(x...

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  6. Prove that : (sin 5x-2sin3x+sinx)/(cos5x-cosx)=tanx

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  7. 1^(2)+2^(2)+3^(2)+..........+n^(2)=(n(n+1)(2n+1))/(6)

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  8. Solve the inequalities graphically 3x+4yle60,x+3yle30,xge0,yge0.

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  9. What is the number of ways of choosing 4 cards from a pack of 52 play...

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  10. What is the number of ways of choosing 4 cards from a pack of 52 play...

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  11. What is the number of ways of choosing 4 cards from a pack of 52 play...

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  12. What is the number of ways of choosing 4 cards from a pack of 52 play...

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  13. State and prove Bionomial theorem for any positive integer n.

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  14. Derive the equation of a straight line having the intercepts 'a' & 'b'...

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  15. Find the co-ordinates of the point P which divides the line segment jo...

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  16. Prove that underset (x rarr 0) lim (sin x)/x=1,where x is in radian an...

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  17. (a)Derive geometrically that cos(x+y)=cos x cos y-sin x sin y.Hence de...

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  18. Find the sum to n terms of the series , 5+11+19+29+41…

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  19. Derive the equation of the ellipse in the form (x^(2))/(a^(2))+(y^(2))...

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  20. Find the derivative of (x + cos x)/(tan x) with respect to x

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