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Pascal's triangle, rows 0 through 7. The hockey stick identity confirms, for example: for n =6, r =2: 1+3+6+10+15=35. In combinatorics , the hockey-stick identity , [ 1 ] Christmas stocking identity , [ 2 ] boomerang identity , Fermat's identity or Chu's Theorem , [ 3 ] states that if n ≥ r ≥ 0 {\displaystyle n\geq r\geq 0} are integers, then
In mathematics, Pascal's rule (or Pascal's formula) is a combinatorial identity about binomial coefficients.It states that for positive natural numbers n and k, + = (), where () is a binomial coefficient; one interpretation of the coefficient of the x k term in the expansion of (1 + x) n.
Toe socks became popular in the United States during the 1970s and made a comeback in the 1990s as a novelty item worn by adolescents. During the 1970s, it was fashionable for girls to wear clogs or buffalo sandals with toe socks. [3] In colder weather, they may be worn with flip-flops. [4]
The Allbirds Tree Runner sneakers are as comfy as a pair of socks. Chloe Toscano. Updated November 4, 2024 at 2:47 PM. The Allbirds sneakers have a lot of hype — and they live up to it all.
These birds stand anywhere from 3.5 to 4.3 feet and can weigh anywhere from 50-90 pounds. You can tell them apart from other penguins by their distinct black and white plumage.
The former star athlete who stabbed his ex-girlfriend and her mother in a frenzied parking lot attack in Florida last summer — before slashing his own throat — still had the scars of his ...
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