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

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

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

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

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diff eq: Solve dy/dx = (2y4x^4)/(xy^3) ❌separable to ✅separable

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

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Review: Linear form, Quadratic form & Bilinear form

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2nd way: integral ∫ log √x(x^n) dx

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Swinburne U 2nd way: e^(-e^x) e^x dx

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logic Idempotent law show x=xVx

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

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Yasei no Last Boss ga Arawareta! Episode 5 Sub Indo

Noahjando

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Lamar U: trig integral ∫sin(13z) sin(4z) dz

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2nd/2ways: add math sum a + (a+d) + (a+2d) + ... + (a+(n-1)d) ?

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2nd way: sqrt trig integral ∫1/(√x cos^2(√x)) dx

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Screen Recording 2024-05-05 at 11.28.23 PM

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Screen Recording 2024-05-10 at 6.28.27 PM

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integration bee 2014 UNSW 2nd way: tan(x)/(sin(x) cos(x)) dx

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If y=acos(ln(x)) + bsin(ln(x)), show that x^2y2 + xy1 +y=0

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trig integral ∫sec^2(x)/tan(x) dx vs ∫tan(x)/sec^2(x) dx

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2nd way: ∫ (x+1)/(1-x^2) dx

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