Maths-
The number of ways in which 17 billiard balls be arranged in a row if 7 of them are black, 6 are red, 4 are white is
Maths-General
Answer:The correct answer is: 
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The foci of the ellipse 25 (x + 1)2 + 9 (y + 2)2 = 225 are
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then A-B=
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The eccentricity of the curve represented by the equation x2 + 2y2 – 2x + 3y + 2 = 0 is
The eccentricity of the curve represented by the equation x2 + 2y2 – 2x + 3y + 2 = 0 is
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If S’ and S are the foci of the ellipse
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