Question: Need help .. (3) Fix positive integers k (3) Fix positive integers k n. Use the Principle of Inclusion and Exclusion to find a formula

Need help ..

(3) Fix positive integers k

(3) Fix positive integers k n. Use the Principle of Inclusion and Exclusion to find a formula for the number of compositions a = [al, ... , ak] n with the property that ai 2 2 for all i e [k].

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