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hello

hi :)

okay breakdown the problem in your own words

okay let's start with tan what do we tan is broken down?

we are working backwards to get to the answer here

:/ I actually don't really know

for example tanA= sinA/cosA= SinA/sinC/TanA/ TanB see that

look at the answers given and compare to what the problem there are clues there

you still here?

Yes, sorry. I'm still here! Umm... Let me check

They all have tan though :/

yes that is the point because tan is sin/cos

Yes but how will I know which one is the answer?

and cos^-1 is 1/cos and sin-1 is 1/sin

austra I am on the track here? I am rusty so I may be leaving a step out can you help ?

Fun,
look at -arccos(3/5) and arcsin(5/13) as just numbers because that is what they are
so set
x = arcsin(5/13
and
y = -arccos(3/5)
and see the identity attached

note in respect to the image x and y are theta

well theta1 and theta2 respectively

Oh I see. To me, it looks like the first option is the correct choice

also im sure you can derive this instead of memorizing it but idk

you are adding in that identity though charlie so it wont be the same

http://www.sosmath.com/trig/Trig5/trig5/trig5.html

logically I would think so charlie

yes it is answer three

btw unrelated but do you love charlie day from its always sunny in Philadelphia

Thank you guys! I really appreciate your help!

or is that exclusive to all charlies

@Australopithecus Oh, no haha Charlie is my dog lol

lol funny

sorry I meant inclusive :)