2016
Mathematics
67ca00ce0c643c71d77dee1f
The nth term of the sequence 3, 9, 27, 81.....is
A.
3 x 3n-2
B.
3 x 3n-1
C.
3 x 3n+2
D.
3 x 3n+1
Correct Answer: 3 x 3n-1
Explanation
3,9,27,81,..... r = 9/8 = 3 Tn = arn-1 Tn = 3(3n-1 = 3(32)/3
3,9,27,81,..... r = 9/8 = 3 Tn = arn-1 Tn = 3(3n-1 = 3(32)/3THIS WEEK's
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