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The nth term of two sequences are Qn = 3 . 2n - 2 and...

Mathematics
JAMB 2004
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
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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

There is an explanation video available below.

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Explanation Video

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