Math 148: Precalculus

(:={
0:=}

()

${0 \choose 0} = 1$

(),(a)

${1\choose0}=1, {1\choose1}=1$

(), (a) (b), (a,b)

${2 \choose 0} = 1, {2\choose 1} = 2, {2\choose 2} = 1$

(),(a)(b)(c),(b.c)(a.c)(a.b),(a.b.c)

${3\choose0}=1,{3\choose1}=3,{3\choose2}=3,{3\choose3}=$

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Math 148: Precalculus

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