2004
Mathematics
JAMB
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: 18
Explanation
Qn = 3 = 3 * 2n - 2 Um = 3 * 22m - 3 Q2 * U2 = (3 * 22 - 2) * (3 * 22(2) - 3) = 3 * 2sup>0 * 3 * 2sup>1 = 3 * 1 * 3 * 2 = 18
Qn = 3 = 3 * 2n - 2 Um = 3 * 22m - 3 Q2 * U2 = (3 * 22 - 2) * (3 * 22(2) - 3) = 3 * 2sup>0 * 3 * 2sup>1 = 3 * 1 * 3 * 2 = 18THIS WEEK's
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