(Solution) - a Find the coefficient of x2yz2 in the expansion of -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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Pages: 5 Words: 1375

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(a) Find the coefficient of x2yz2 in the expansion of [(x/2) + y - 3z]5.
(b) How many distinct terms are there in the complete expansion of

(c) What is the sum of all coefficients in the complete expansion?