1-(1-0.5)²×1/5×[2+(-3)³]

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 04:05:22
1-(1-0.5)²×1/5×[2+(-3)³]1-(1-0.5)²×1/5×[2+(-3)³]1-(1-0.5)²×1/5×[2+(-3)³

1-(1-0.5)²×1/5×[2+(-3)³]
1-(1-0.5)²×1/5×[2+(-3)³]

1-(1-0.5)²×1/5×[2+(-3)³]
1-(1-0.5)²×1/5×[2+(-3)³]
=1-1/4x1/5x(2-27)
=1-1/20*(-25)
=1+5/4
=2又4分之1