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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 β« 2/3 cos(x)/sin^2(x) dx
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MP 2000 Hindustan: Evaluate β«(tan(x)+cot(x))^2 dx
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2 ways: integral β« 1/(x^2 β(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 Ξ£i = n(n+1)/2 where i=1 to n
2 ways: trig integral β«sin(βx) dx
YU-GI-OHβS MOST HATED CARDS ARE A DECADE OLD!
2 ways: trig show tan(2x)=2tan(x)/1-tan^2(x))
1st way: count values nPn, nP(n-1), nP(n-2)
We lost original x's but still know mean xΜ & n. Now we collected m new observations.
The inspector Joshua movie
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1st/2ways: Evaluate lim sin(5x)/sin(9x) as x tends 0
Alternate way: 2nd picture Show 1+3+5+...+(2n-1)=n^2
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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