(4×16^n+1-16×4^2n)÷(4×4^2n+3-16^n+1)
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1
Answer:
16×2
n+1
−4×2
n
=
16×2
2
×2
n
−2×2
2
×2
n
16×2×2
n
−4×2
2n
(asa
m+n
=a
m
−a
n
)
=
2
n
(16×2
2
−2×2
2
)
2
n
(16×2−4)
=
16×4−2×4
32−4
=
56
28
=
2
1
16×2
n+1
−4×2
n
=
16×2
2
×2
n
−2×2
2
×2
n
16×2×2
n
−4×2
2n
(asa
m+n
=a
m
−a
n
)
=
2
n
(16×2
2
−2×2
2
)
2
n
(16×2−4)
=
16×4−2×4
32−4
=
56
28
=
2
1
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