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发表于 2009-2-27 18:11:54
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来自: 中国台湾
http://img23.imageshack.us/img23/4962/47311173.gif! K3 [, ~" p# a8 |; c
! y2 R6 K$ G# W& ~, \( k7 e: k1. a 弧之长度为:
4 e v; u; C' F7 n( }. h% O b. 83.7758( b/ t9 c4 s/ J' Q# W
2. b 弧之长度为:
$ X5 J3 A4 T/ j t U ]1 C' h c. 60.4600
]. c* l1 c9 M, X! S6 I# W& U' V! T3. c 弧之长度为:3 ?0 t9 h3 g1 @5 z
b. 65.5325
0 s+ ~. R- @' W, r7 d( h# L6 F4. d 弧之长度为:: ]. D$ T, d/ u
c. 108.61001 ^: S: w. J& H3 A1 {* J
5. e 弧之长度为:
; ^4 ?# {7 S7 \7 G a. 76.8018$ k' a: F7 o0 u" u' p1 o
6. f 弧之长度为:1 [9 s1 a. ]4 f3 @) ]
c. 65.4325
8 O; F4 L/ r) u7. g 弧之长度为:
* o9 r! P. W* }5 i) l/ v% o b. 126.4051: Y9 l1 `2 [: q4 S* Q6 y
8. p 弧之长度为:9 `- C& W& b# R H: v; g2 s
a. 117.8097 |
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