(n+2)/(n+3) quero a solução do problema
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ta n ..
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(n + 2)! n(n + 2).(n + 1)!
---------- = -------------------------------
(n + 3)! n(n + 3).(n + 2).(n + 1)!
==============================
Cancela n (n + 2) (n + 1)!
Resp:
1
---------
(n + 3)
==========================================================
12! . 3! 12! . 3! 3! 3 . 2 . 1
------------ = ----------------- = cancela os 12! = ----------- = ----------- = =>
15! 15.14.13.12! 15.14.13 15.14.13
======================================================
1 1
=> ---------- = --------
5.7.13 455
---------- = -------------------------------
(n + 3)! n(n + 3).(n + 2).(n + 1)!
==============================
Cancela n (n + 2) (n + 1)!
Resp:
1
---------
(n + 3)
==========================================================
12! . 3! 12! . 3! 3! 3 . 2 . 1
------------ = ----------------- = cancela os 12! = ----------- = ----------- = =>
15! 15.14.13.12! 15.14.13 15.14.13
======================================================
1 1
=> ---------- = --------
5.7.13 455
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