(8) Pens are sold in 5 colors. In how many ways can 20 pens be purchased that include at least one of each color? (9) Fi
Posted: Thu May 12, 2022 4:16 pm
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(8) Pens are sold in 5 colors. In how many ways can 20 pens be purchased that include at least one of each color? (9) Find the coefficient of xy2 in the expansion of (x/2 + 2y)8. (10) (a) In how many ways can eight distinct T-shirts be distributed to four people? munu as can eight identical T-shirts be distributed to four