【进阶级练习题49】) z$ Y1 z* N4 I/ y
原创:Joseflin先生(台湾) 整理:SHAONX(上海)' C7 b }9 O1 u' j
- I$ f8 n; H$ @' W' m" u( x/ S9 r
求:% V! b+ D1 `0 s. [. e
1. a 值为何?0 e; Z! }( K" e0 j, V) h
a. 49.8293 b.49.8329 c. 49.8392 + Z: O. Q, _9 f0 E5 I2. b 值为何? ( Z- M8 C' ?2 ^2 O' _+ S4 J% U a. 16.6667 b. 16.6676 c. 16.6766 $ v4 D( f8 V. ]3. c 值为何? ! o/ z" S; N A1 l( n8 F a. 38.4696 b. 38.6494 c. 38.9446 * x; [+ W+ j" r: f4. 蓝剖面线区域之面积为何? $ N- l0 b' D/ F; _ a. 1067.3350 b. 1067.3305 c. 1067.3503