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vivmd
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vivmd
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3 ^n+2 + (3 ^n+3 - 3 ^n+1 ) = ?
3n+2 + (3n+3 - 3n+1) = ?
Choices are:
(A) 1/3n+1
(B) 1/3n+2
read more ..
●
vivmd
Oct 27, 2018
+4 
