3 picture views of the sum ... 1+2+3+...+n

4 ways: derivative x(log(x)-1)

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MPPET 1996 Hindustan: trig integral ∫ sin^2(x) -cos^2(x)/(sin^2(x) cos^2(x)) dx

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

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1st way: exp ∫(e^x)/x (1+x log(x)) dx

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2nd way: integral ∫ log √x(x^n) dx

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

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impIicit diff f x^y=y^x, find dy/dx at (2,4)

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Show Σa=na where k=1 to n

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prob stat: Consider the experiment of tossing a fair coin twice & reading the up face on each toss.

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NYU: 3 ways ∫(1+ln(x))/x dx

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Evaluate these 7 integrals ...

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3 ways: Find 1+2+3+ ... + n^2.

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

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A bag contains 5 red balls & 3 green balls. A ball is selected at random &

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2nd way: integral ∫x/(2ax-x^2) dx

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Lamar U 2nd way: evaluate exp integral ∫e^(8x)(4+e^(4x))^(-3) dx

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#12 UC Davis: Find the length of the graph for x=ln(y)=y^2/8 on the closed interval ...

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2 ways: trig integral ∫tan^3(x) sec^2(x) dx

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stat: SLR Properties of residuals

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Median [special weighted mean]

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