已知f(x)=10x-1-2,则f-1(8)=______.
令f(x)=8得:
10x-1-2=8,⇒x=2,
∴f-1(8)=2.
故答案为:2.
连词成句,注意句后的标点。
1. he, does, bananas, like
_______________________________?
2. chicken, lunch, my, for, mother, likes
_________________________ _____.
3. vegetables, to, like, what, you, eat, do
4. doesn’t, he, French, like, fries
_______________________________.
5. what, have, do, for, breakfast, you, often
没有感觉就不能认识事物,但客观事物是不依赖感觉而存在的。 ( )