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发表于 2007-1-4 21:43
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求:7 O; E9 j% ^4 u \
1. a 之长度为何?
( }$ b4 H! l" O, o a. 9.6477 b. 9.6747 c. 9.67744 W2 p* v) V( e
2. b 之长度为何?& @6 h0 ^" f# L9 T
a. 14.5116 b, 14.5161 c. 14.56111 x4 r5 {0 o7 I+ i% {: k x3 h" p- C1 ~
3. A弧之弧长为何?
" ^, j8 \- X5 y# X' q+ |( x! s3 R a. 27.0034 b. 27.0304 c. 27.0403
: |( {+ M6 w0 u0 t4. B弧之弧长为何?$ v- g! c: e, L
a. 19.8049 b. 19.8409 c. 19.8940& B1 F8 [" o1 |; n U
5. C弧之半径值为何? _& p! C1 p4 u5 U `! P7 y. p6 M* H
a. 21.8176 b. 21.8671 c. 21.87166 l* y, T0 \. h, z: t8 _
6. 剖面线区域之面积为何?8 t% e, B& g1 D/ v# L5 N" k
a. 145.0234 b. 145.0342 c. 145.0432 |
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