prob stat: Compute Var(X) when X represents the outcome when we roll a fair die.

OSU Math 1151 Practice4: Compute the derivative

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AI 2008 Hindustan 2nd/2 ways: Evaluate trig integral ∫2cos(x)/(3 sin^3(x)) dx

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MP 8,93,96,97,99 Hindustan: Evaluate ∫ sec(x)/(sec(x)-tan(x)) dx

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logic: tautology (¬p→q)∧(¬p→¬q) →p

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MP 2000 Hindustan: Evaluate ∫(tan(x)+cot(x))^2 dx

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2 ways: The following measurements were taken by an antique dealer as he weighted to the ...

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Pantun Melayu [Buah cempedak di luar pagar]

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RPET 2003 Hindustan: integral ∫sin^4(x)-cos^4(x) dx

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1st/2ways: Find the sum 1/7, 10/21, 17/21, 24/21, 31/21 via median.

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Review: Linear form, Quadratic form & Bilinear form

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lim x/e^x? as x→∞

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Penn. State U: Suppose the p.m.f of discrete random variable X is ...

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Alternate way: sq root integral ∫1/√((x-α)(x-β)) dx

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Review: Product to Sum Identities

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6. The little one cured the sickly CEO with one move and became the family’s favorite.

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Columbia U: 1st way integral ∫√(x^2-9)/x^4 dx

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Careful: arc sin(sin(5π/4)) ≠ ...

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2 ways: integral ∫(x-a)/(x+a) dx

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1st way: Differentiate the function w.r.t x log10(x)+logx(10)+logx(x)+log10(10)

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examples 2x2 matrix withOUT an inverse

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