Question 433250
This is like:
What breed is the dog owned by the owner of the dog who is a Pekinese?
It reads:
The angle whose Sin is the Sin(-7pi/6)
It remains to show that {{{ -7*pi/6 = pi/6 }}}
{{{ -6*pi/6 = -pi }}}
Now going {{{-pi/6}}} radians more, I get a positive {{{ 5*pi/6 }}}
The Sin of this is positive, so I guess you can say it's the same
as an angle of {{{ pi/6 }}}. I sort of question it, but maybe it's
OK. Why isn't {{{5*pi/6}}} a better answer?