【进阶级练习题91】 8 \5 C# P5 j z E. r0 z3 }) Z9 @/ q0 Z% [/ U; ]. Y& n ?
求:& U, k1 M6 w4 \
1. a 之弧长为何? ; O0 G6 D2 j: H% D a. 58.9148 b, 58.9481 c. 58.9814 8 r! j- ]2 w8 O9 T2. e 之弧长为何?8 j# X2 B! c. R* _. o
a. 41.5182 b. 41.5281 c. 41.5812 # \- ~7 ?. X5 C) x3. AD 之距离为何?# b8 } X- k2 m
a. 89.9067 b. 89.9607 c. 89.9706 * p( }9 }) Y+ \2 k. m1 d4. ∠ABC之角度值为何?& k6 ~: G. b: b- }+ L2 S
a. 35.2663° b. 35.6263° c. 35.6623°6 k" z7 _3 K. [; {- Y, D9 o# L
5. 蓝色剖面线区域之面积为何? & f+ Y; Z1 V: e8 C+ V5 J& o a. 106.3238 b. 106.3382 c. 106.3823# k* X2 R. F3 i6 u! \+ ~6 V: ]
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[ 本帖最后由 shaonx 于 2009-4-12 16:18 编辑 ]
1. a 之弧长为何? 9 A) s5 T9 g2 X( \; t a. 58.9148 b, 58.9481 c. 58.9814" x4 c7 Y) p2 f1 S+ y4 c7 K/ @
2. e 之弧长为何?% Q* |" t7 T6 m
a. 41.5182 b. 41.5281 c. 41.5812 ' [2 c6 N: N# L. K4 g: k) I+ j' t3. AD 之距离为何? 8 f8 N8 _! t F8 _, S a. 89.9067 b. 89.9607 c. 89.9706 / |$ p# b0 f% z: O" b- f7 Q4. ∠ABC之角度值为何?4 S) Z9 P+ N% v: }0 T+ x/ a" K( A2 Y9 f
a. 35.2663° b. 35.6263° c. 35.6623°3 V6 u+ y3 h2 H$ v4 F
5. 蓝色剖面线区域之面积为何?8 K% z( e* ? K0 l) ]5 f% V
a. 106.3238 b. 106.3382 c. 106.3823# ]( N: S K) e0 Z- z2 @