I found an easier way to do the last one. After doing the first step, you end up with LS being (cosxcosy+sinxsiny) over (cosxcosy-sinxsiny), and the RS being (1+(sinx over cosx)(siny over cosy)) over (1-(sinx over cosx)(siny over cosy)). At this step, you can either times the LS by ((1 over cosxcosy) over (1 over cosxcosy)). Or, you can times the RS by ((cosxcosx over cosycosy)). Both ways workI believe (I personally prefer changing the LS). I find these much easier.
you made this so fun bruh i love trig now
you a real fuckin g for these
man this shit is impossible to memorise 😭
You, my good friend, just helped me get through precalc 30. Thanks for a great step-by-step lesson for each question!
I found an easier way to do the last one. After doing the first step, you end up with LS being (cosxcosy+sinxsiny) over (cosxcosy-sinxsiny), and the RS being (1+(sinx over cosx)(siny over cosy)) over (1-(sinx over cosx)(siny over cosy)). At this step, you can either times the LS by ((1 over cosxcosy) over (1 over cosxcosy)). Or, you can times the RS by ((cosxcosx over cosycosy)). Both ways workI believe (I personally prefer changing the LS). I find these much easier.
Where can I find that sheet with all the identities?
I would like to find that sheet as well
thank you for this
exam mein itnay asan sawal to nae atay