Given that the nth rule for the sequence is
We need to determine the seconds, fourth and eleventh terms of the sequence.
<u>Second term:</u>
The second term of the sequence can be determined by substituting n = 2, in
Thus, we have;
Simplifying, we get;
Thus, the second term of the sequence is 20.
<u>Fourth term:</u>
The fourth term of the sequence can be determined by substituting n = 4 in
Thus, we have;
Simplifying, we get;
Thus, the fourth term of the sequence is 44.
<u>Eleventh term:</u>
The eleventh term of the sequence can be determined by substituting n = 11 in
Thus, we have;
Simplifying, we get;
Thus, the eleventh term of the sequence is 128.