2 Views PremiumApr 17, 2024
Bijection of elements in tn & a pair of elements of (n+1)
4 Views
1st/2ways: Find the sum 1/7, 10/21, 17/21, 24/21, 31/21 via median.
8 Views
Review: Linear form, Quadratic form & Bilinear form
31 Views
Pantun Melayu [Sorong papan tarik papan]
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MP 98 Hindustan: Evaluate (i) ∫e^loge(x) dx (ii) ∫e^(-loge(x)) dx
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Alternate way: Find 1+2+3+... +(n-1)+n via "polynomial degree 2"
27 Views
HarmonyOS PC’s new features outperform Windows, with HarmonyOS far ahead.
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That’s about it for HarmonyOS
Hilarious! Hangzhou has been dubbed a “food desert,” and West Lake Vinegar Fish surely deserves much
1st/3ways: exp Derivative x^x
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Quickie: 6169^2 - 2331^2?
5 Views
#19 2019 MIT Integration Bee Final
1 View
Redishdragie stream 18-11-2025 X4 C
This is the most brain‑teasing logo I’ve ever made.
2nd/2 ways: Show 1+3+5+ ... +(2n-1) + (2n+1) + (2n-1)+...+5+3+1= n^2 + (n+1)^2
Screen Recording 2024-02-16 at 8.23.14 PM
The first-stage debris of the Long March-2D carrier rocket fell within Qinghai Province.
3rd/3ways: sum Show 1+2+3+...+n = n(1+n)/2
1st/3 ways: Show 1+2+3+...+n=n(1+n)/2 via picture
1st/2 ways[Direct]: Prove that the sum of 2 ODD numbers is ALWAYS EVEN