i kinda revised my yr11 content yet i stil cant figure these out and im spending far too much time on it than i would like. Please help 
the q is:
expand and simplify
sin(pi/6 -y)
i cant go further than; sin30* - siny
..and if someone could also mention what part of the prelim course im lacking knowledge in for this q, it would b muchly appreciated.
the q is:
expand and simplify
sin(pi/6 -y)
i cant go further than; sin30* - siny
..and if someone could also mention what part of the prelim course im lacking knowledge in for this q, it would b muchly appreciated.
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