The nth term of two sequences are Qn = 3 . 2n – 2 and Um = 3 . 22m – 3. Find the product of Q2 and U2.
-
A.
18 -
B.
12 -
C.
6 -
D.
3
Correct Answer: Option A
Explanation
Qn = 3 * 2n – 2
Um = 3 * 22m – 3
Q2 * U2 = (3 * 22 – 2) * (3 * 22(2) – 3)
= 3 * 20 * 3 * 21
= 3 * 1 * 3 * 2
= 18