Problem

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

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?

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