Doubly triangular number

Always ZERO

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Review: Linear form, Quadratic form & Bilinear form

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logic Idempotent law show x=xVx

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MP 98 Hindustan: Evaluate (i) ∫e^loge(x) dx (ii) ∫e^(-loge(x)) dx

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

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example: Mean, Median & Mode

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

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Pantun Melayu [Buah cempedak di luar pagar]

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Eps_1 cewek imut berjiwa gila bertarung mc basmi penyakit pake chi demi cari law

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Find the number of different 8 letter arrangements that can be made from the letters of the word ..

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The sum of 3 numbers in AP is 15 & the sum of their squares is 3. Find the numbers.

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UC Davis: differentiate y=(3x+1)^2

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Sum of the first n integers 1+2+3+ ...+n=n/2 (1+n) via Induction

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

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

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2nd way: exp integral ∫e^(1/x)/x^2 dx

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Find r, if 5 4Pr = 6 5(r-1)

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2nd way: ∫ 3/x^5 √((x^4+1)/x^4) dx

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prob stat: We begin with a sample of n=5 scores with ∑x=35 & M=7. ...

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trig Show (sec(x)+1)/sec^2(x) = sin^2(x)/(sec(x)-1)

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