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Back to 12.4 Binomial Theorem

12.4 Exercise 15

Avg difficulty 2.5

Evaluate each binomial coefficient:

ⓐ (21)\begin{pmatrix} 2 \\ 1 \end{pmatrix} ⓑ (1111)\begin{pmatrix} 11 \\ 11 \end{pmatrix} ⓒ (90)\begin{pmatrix} 9 \\ 0 \end{pmatrix} ⓓ (65).\begin{pmatrix} 6 \\ 5 \end{pmatrix} .

OpenStax Intermediate Algebra 2e, 12.4 Binomial Theorem, exercise 15

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Adapted from Intermediate Algebra 2e © 2020 Rice University. Licensed under CC BY 4.0. Source: Intermediate Algebra 2e. Imported at revision 77a933c.