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

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

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

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Pantun Melayu [Sorong papan tarik papan]

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

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

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🪔 Happy Deepavali 🪔 [Nov-12-2023]

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Penn. State U: Suppose the p.m.f of discrete random variable X is ...

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3rd way: rational function integral ∫x^3/√ (1+x^2) dx

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NONelementary integral ∫e^(ax)/x dx

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2nd way: ∫2x/(x+5)^6 dx vs ∫2x (x+5)^6 dx

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9Screen Recording 2023-12-02 at 2.43.56 AM

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logic: Show (p→r)∨(q→r) ≡ (p∧ q) →r

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AP Calculus: integral ∫(5√x^3 + √6x) /√x dx

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3rd Alternate way: ∫(5+2x^3)/(x+x^4) dx

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inverse trig Derivative arc sin(x)

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Alternate way: trig integral ∫cot(x) csc^6(x) dx ... just in 1 line.

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1st/2ways: Taylor series of sin(x)

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

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derivative If y=acos(log(x)) + bsin(log(x)), prove that x^2y2+xy1+y=0

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