已知a+1⼀a=10,求a눀+1⼀a눀和(a-1⼀a)눀的值

2024-11-18 05:47:33
推荐回答(2个)
回答1:

98,96

回答2:

a²+1/斗磨a²=(a+1/a)^2-2=98
(a-1/a)²=a²纳销掘+1/a²洞核-2=98-2=96