2nd part: n^2 = (tn - tn-1)^2 where tn = nth triangular number

Bijection of elements in tn & a pair of elements of (n+1)

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

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

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Review: Product to Sum Identities

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prob stat In a sample of n= 6 scores, 5 of the scores are each above the mean by one point.

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1st/2parts: Linear interpolation (2 given points)

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Which of the following do NOT constitute a set & WHY?

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2nd/2ways: Taylor series of cos(x)

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The University of Maine: rational function integral compute

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Solve cos^2(x) dy/dx +y = tan(x) via Integrating factor[IF]

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integral Find ∫ 2x/(x^2+1)^(1/3) dx

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2nd way: trig integral (1+cos(x))/(x+sin(x)) dx

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1st/3 parts: Growing patterns

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3th/4 ways: integral ∫1/(x + √x) dx

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2nd way: derivative x^n w.r.t x^x

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2 ways: derivative x √√x

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count: How many subsets does {23,24,25,...,118} have?

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Lamar U: trig integral ∫tan^12(x) sec^6(x) dx

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