Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread
You can convert the long decimal into an exact radian value by dividing pi by the answer.
Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread
Taking the inverse does directly get you the related angle pi/8 though, and then he used that angle to find the solutions in the appropriate quadrants... Isn't that how you would normally do it?
Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread
Yay you happened to do all three of the questions that I needed to do for homework, thanks ;)
Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread
Yeah, that's what I thought too. In Fitz Patrick, I think the answers refer to y=log(x) as base 10 so its annoying haha :D
Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread
I always get confused; do we assume that it is to the base 'e' if not specified, or base 10?