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Four cards are drawn successively with r...

Four cards are drawn successively with replacement from a well shuffled deck of 52 cards. What is the probability that (i) all the four cards are spades ? (ii) only 2 cards are spades ?

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XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
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  2. Evaluate :int(3x-2)sqrt(x^2+x+1) dx

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  3. Four cards are drawn successively with replacement from a well shuffle...

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  5. A manufacturer produces nuts and bolts. It takes 2 hours work on machi...

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  10. A trust fund has Rs. 35,000 is to be invested in two different types o...

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  11. Find the solution f the differential equation (dy)/(dx)=x^3e^(-2y)dot

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  12. In the interval 2/pi<x<pi, find the value of x for which the matrix (2...

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  13. Write the vector equation of the line passing through (1,2,3) and pe...

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  14. Express the matrix A=[2 4-6 7 3 5 1-2 4] as the sum of a symmetric and...

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  15. Write the direction ratios of the vector 3 vec a+2 vec b where vec a=...

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  17. Solve the differential equation (dy)/(dx)-3ycotx=sin2x given y=2 when ...

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  18. Solve for x :tan^(-1)((1-x)/(1+x))=1/2tan^(-1)x ,x >0

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  19. Prove that 2tan^(-1)(1/2)+tan^(-1)(1/7)=sin^(-1)((31)/(25sqrt(2)))

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  20. Find : int0^(1/(sqrt(2)))(sin^(-1)x)/((1-x^2)^(3/2))dxdot

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