I'm in year 11 right now and I just had a brief discussion with my maths teacher about function notation in trigonometry.
For a test, I wrote this,
sin(50)^2
I assumed that would be interpreted as sin(50)*sin(50)
But I was told the correct notation for this is is
sin^2 (50)
or optionally
(sin (50))^2
I'm curious if that is the 'proper' mathematical convention, or just how things are taught in high schools?
I'm Australian, in case there are some regional differences.
Thanks for the help!