已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方 (3)a⁴+a的-4次方
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 00:28:36
![已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方 (3)a⁴+a的-4次方](/uploads/image/z/371034-18-4.jpg?t=%E5%B7%B2%E7%9F%A5a%26%23178%3B-3a%2B1%3D0%2C%E6%B1%82%EF%BC%9A%EF%BC%881%EF%BC%89a%2Ba%E7%9A%84-1%E6%AC%A1%E6%96%B9%EF%BC%9B+%EF%BC%882%EF%BC%89a%26%23178%3B%2Ba%E7%9A%84-2%E6%AC%A1%E6%96%B9%E5%B7%B2%E7%9F%A5a%26%23178%3B-3a%2B1%3D0%2C%E6%B1%82%EF%BC%9A%EF%BC%881%EF%BC%89a%2Ba%E7%9A%84-1%E6%AC%A1%E6%96%B9%EF%BC%9B+%EF%BC%882%EF%BC%89a%26%23178%3B%2Ba%E7%9A%84-2%E6%AC%A1%E6%96%B9+%EF%BC%883%EF%BC%89a%26%238308%3B%2Ba%E7%9A%84-4%E6%AC%A1%E6%96%B9)
x){}KՔ
-u
m
tmlzg=t&j'>բklgv3[(ahHAlH"gal 4H$S0'l~4 mO*K|s3PPdP8D@jUkkIs
b*-s ibn_\g
5 E}
已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方 (3)a⁴+a的-4次方
已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方
已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方 (3)a⁴+a的-4次方
已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方已知a²-3a+1=0,求:(1)a+a的-1次方; (2)a²+a的-2次方 (3)a⁴+a的-4次方
a+1/a=(a平方+1)/a=3a/a=3
a^2+1/a^2=(a+1/a)^2-2=3*3-2=7
a^4+1/a^4=(a^2+1/a^2)^2 -2=7*7-2=47