How many distinct terms are there in the multinomial expansions of (a) (a + b + c)^6, (b) (a + b + c + d)^5?

How many distinct terms are there in the multinomial expansionsof(a) (a + b + c)^6,(b) (a + b + c + d)^5?

Solution a)Here n=exponent=6Number of terms inside parenthesis=m=3Hence Total number of distinct term is given by formula = = =28 Answer = = =56 Answer Solution b)Here n=exponent=6Number of...