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mutinta
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a child and a sled weighed 290N slide down an ice covered hill that is 10m high. at the bottom of the hill there is an free ice,
7 answers
1,489 views
in the binomial expansion of (1+x/k)^n, where k is a constant and n is a positive integer, the coefficients of x and x^2 are
3 answers
1,210 views
