Question

風

求大神教我 我需要詳解

n
+{sin (²) (cos()} = a
4n
n
k=1
5. Suppose that lim
n-x
of a.
(A) 1. (B) 2.
-
(C) 4. (D) 8.
= a · In(√2+1). Find the value

Answer 1

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