-42+
|
-42+
×[3 8
-(-2)2]3
=-16+2(
-4)3
=-16+2
-83
=-24+2
,3
∵
≈1.732,3
∴-24+2
=-24+2×1.732=-20.536≈-20.5.3
故答案为:-20.5.
-42+
|
-42+
×[3 8
-(-2)2]3
=-16+2(
-4)3
=-16+2
-83
=-24+2
,3
∵
≈1.732,3
∴-24+2
=-24+2×1.732=-20.536≈-20.5.3
故答案为:-20.5.