Answer:
Part a: The coefficient of is
Part b: The number of terms are 23751.
Step-by-step explanation:
part a
From the given equation the
So the coefficient of any term is given as
Similarly for the generic equation of coefficient of the term in the equation of form is given as
So now the coefficient of is given as
The coefficient of is
Part b:
The number of terms is given as
where m is the number of variables which are 5 here
n is the power which is 25 so the number of variables is given as
So the number of terms are 23751.