Question

如果b/a=5,求(a²+b²)/(ab)的值

Answer 1

∵b/a=5
∴a/b=1/5
(a²+b²)/ab
=a²/ab+b²/ab
=a/b+b/a
=1/5+5
=26/5

Answer 2

也要自己认真算算，同时也可以问问老师或同学，毕竟只有自己能让自己学会啊，加油哦
∵b/a=5
∴a/b=1/5
(a²+b²)/ab
=a²/ab+b²/ab
=a/b+b/a
=1/5+5
=26/5