What is the coefficient of the last term in the binomial expansion of (x + 1)9? 0 1 9 10

The first and last terms have coefficients of 1. The coefficient of the n-th term is C(9, n-1) = 9!/((n-1)!(10-n)!) for n=1 to 10.

The appropriate choice is ...

... 1

1

Step-by-step explanation:

Given :

To Find : What is the coefficient of the last term in the binomial expansion of (x + 1)9?  

Solution :

Formula of expansion :

So , in the last term k =9

Thus the coefficient of last term is 1.

Hence option 2 is correct

99

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.