You probably want for percentage difference for a given value. So yes you should give a value and solve.
But in my opinion the formula would rather be since you usually approximate by
This is for my physics class, but it's a math related problem.
What is the percentage difference between and sin( )?
Teacher said to use:
then multiply by 100 to get the percentage. But I guess i just don't understand what i'm exactly supposed to do. Give a value and solve? Any help is greatly appreciated!