Question

Given a sequence is defined by the explicit definition t_n= n^2+nt n = n 2 + n, find the 4th term of the sequence. (i.e. t_4t 4)

Answer 1

*100% CORRECT ANSWERS

Answer 2

Answer:

Question 1:  20

Question 2: 27

Step-by-step explanation:

Question 1:  

Given a sequence is defined by the explicit definition $t_{n} = n^{2} + n$

Therefore, the 4th term i.e. $t_{4} = 4^{2} + 4 = 20$ (Answer)

So, the third option is correct.

Question 2:  

Given a sequence is defined by the explicit definition $t_{n} = 2^{n} - n$

Therefore, the 5th term i.e. $t_{5} = 2^{5} - 5 = 27$ (Answer)

So, the third option is correct.