log 𝖎𝖓𝖙𝖊𝖌𝖗𝖆𝖑 ∫1/(x ln(x) ln(ln(x))) dx

Solve the following differential equation cos^2(x)dy/dx +y = tan(x)

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Alternate way: Find 1+2+3+... +(n-1)+n via "polynomial degree 2"

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STPM Math T Sem. 2: Ex 11.2 Given that f(x)=tan(x), show that ...

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Pantun Melayu [Buah cempedak di luar pagar]

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count quick review: Permutation vs Combination

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

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

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2 ways: integral ∫ 1/(x^2 √(1+x^2)) dx

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exp integral e^x (f(x) + f'(x)) dx

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UC Davis #10: count prove Σi = n(n+1)/2 where i=1 to n

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2 ways: trig integral ∫sin(√x) dx

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YU-GI-OH’S MOST HATED CARDS ARE A DECADE OLD!

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2 ways: trig show tan(2x)=2tan(x)/1-tan^2(x))

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1st way: count values nPn, nP(n-1), nP(n-2)

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We lost original x's but still know mean x̄ & n. Now we collected m new observations.

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The inspector Joshua movie

Opulence Editing

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1st/2ways: Evaluate lim sin(5x)/sin(9x) as x tends 0

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Alternate way: 2nd picture Show 1+3+5+...+(2n-1)=n^2

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Do you know ... paper folding ...

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Derivative: Don't blindly use the Quotient Rule every time you see a quotient

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