In is the answer
Hope it helps :)
Answer:
can i ask which lesson this question belongs to?
If you are trying to remember information that you are reading, you should be an "active" reader, who pays attention to the words and thinks about connections that may occur.
70+2+0.4+0.08+0.002+0.0003
The complete infinitive phrase in this sentence is 'to learn methods for solving equations', because 'to learn' is the infinitive, but the rest of the phrase also has to be included.