-1的四次方减(1-0.5)*1⼀3*[2-(-3)的平方]是多少 急啊~~~~~

2024-12-23 11:13:44
推荐回答(1个)
回答1:

(-1)^4-(1-0.5)x1/3x[2-(-3)^2]
=1-(1-1/2)x1/3x[2-9]
=1-1/2x1/3x(-7)
=1-(-7/6)
=13/6