An urn contains 4 balls. Two balls are d...

An urn contains 4 balls. Two balls are drawn at random from the urn (without replacement) and are found to be white. What is the probability that all the four balls in the urn are white ?

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XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions

Evaluate : int0^(pi/2)(sin^2x)/(sin x+cos x)dx
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Use elementary column operation C2->C2+2C1 in the following matrix equ...
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Write the number of all possible matrices of order 2xx2 with each ent...
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If x in N and |[x+3,-2],[-3x,2x]|=8, then find the value of x
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Find the vector equation of the plane with intercepts 3,-4 and 2 on x ...
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The two adjacent sides of a parallelogram are 2 hat i-4 hat j-5 hat k ...
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Using integration find the area of the region "{"x , y")":x^2+y^2lt=2a...
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An urn contains 3 white and 6 red balls. Four balls are drawn one by o...
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Find the coordinate of the point P where the line through A(3,4,5) and...
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Let f: N -> S be a function defined as f(x)=9x^2+6x-5. Show that f:N -...
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A manufacturer produces two products A and B. Both the products are ...
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