how to get these answersWatch
so how can I do it with degrees？with degrees, I did (arccos(1/3))^0.5, and I convert the final answer to radians, but I got 0.147
and then continue as in the image below, repeatedly pressing =.
I have never tried that button to convert degree to radians! so why here we should use radians here?I cannot just use the degree form and convert sth by divide or multiply 180/pi? when I should convert degree to radians form?
we normally use 180/pi to convert, but I found it wrong here. so I can't use any degree forms here right? and there is no way to convert?
Simplest way is to put your calculator in radians mode.