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Ok we now sin^2(x)+cos^2(x)=1 replace for sin(x) and find cos(x) then find sin(2x)

My notes are telling me to use the unit circle and to use the terminal point

How old are you?

17

I don't see why my age is relevant lol

Nothing its just that I've taken trig form when i was 14 ðŸ˜‚ðŸ˜œ im 17 now

If you want me I can explain trig to you but it would take time

how do you understand this

What trig?

yeah lol

By using scalar product in the trig circle

what's scalar product

Product of vectors, havent you heard of it?

no ..

Have you heard about the trig circle?

is that unit circle ?

?