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AI 2008 Hindustan: Evaluate integral ∫ 2/3 cos(x)/sin^2(x) dx
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A box contains 8 blue & 6 red socks. What is the number of ways that 2 socks can be drawn ...
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lim x/e^x? as x→∞
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Find the 2nd-order partial derivatives of f(x,y)=2xy^2-3x^2+xy^3
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