16*2n+1-4*2n/16*2n+2-2*2n+2
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16×2n+1-4×2n/16×2n+2-2×2n+2
=32n-8n+1/32n-4n
=8n(4-1)+1/4n (8-1)
=2×3+1/7
=7/7
=1
so your answer is 1
=32n-8n+1/32n-4n
=8n(4-1)+1/4n (8-1)
=2×3+1/7
=7/7
=1
so your answer is 1
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