Question

2 of 5
©
Find the first three terms of the sequence below.
In = n² – 2n – 4
T1=
T2 =
T3 =

Answer 1

Answer:

T1 = -5, T2 = -4, T3 = -1

Step-by-step explanation:

$\text{Substitute}\ n=1,\ n=2\ \text{and}\ n=3\ \text{to}\ I_n=n^2-2n-4:\\\\I_1=1^2-2(1)-4=1-2-4=-5\\\\I_2=2^2-2(2)-4=4-4-4=-4\\\\I_3=3^2-2(3)-4=9-6-4=-1$